Side Effects > L

L Side Effects

Please note - some side effects for L may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

For the consumer Lisinopril Lariam Lopressor HCT Levlen Levonorgestrel/Ethinyl Estradiol Lamivudine/Zidovudine Lodosyn Lamisil Limbrel Lodoxamide Labetalol Lomustine (CCNU) Lexiva Lopressor Lotensin Lovenox Lipitor Luveris Lutropin Alfa Limbitrol DS Loestrin 1/20 Lansoprazole Librax Lysodren Lubiprostone Lithostat Lincocin Lincomycin Lactic Acid with Vitamin E Lactinol-E Leflunomide Levacet Lotensin HCT L-Methylfolate Librium Lopid Lioresal Lactaid Lactase Lemohist Plus Lanoxin Lanthanum Carbonate Losartan Lexapro Lepirudin L-Methylfolate with Vitamins B6 and B12 L-Methylfolate/Methylcobalamin/N-Acetylcysteine Levetiracetam Lamivudine Leustatin Lortab Liotrix Levonorgestrel Licorice Lovastatin Levsin/SL Lufyllin Lonox Lomotil Lunesta Lozol Leukeran Lithium Lexxel Losartan/Hydrochlorothiazide Loracarbef Lorabid Loestrin Fe 1/20 Lotronex Lisinopril/Hydrochlorothiazide Lymphocyte Immune Globulin Loperamide/Simethicone Levsin Lo/Ovral Levaquin Levofloxacin Lenalidomide Lupron Depot-PED Leuprolide Lorazepam Loratadine Lupron Lasix Lescol Levitra Levoxyl Levothyroxine L-Methylfolate/B12/B6/B2 Levo-Dromoran Levorphanol Loperamide Lufyllin-GG Loxitane Loxapine Lyrica Liothyronine Letrozole Lamictal Lamotrigine Linezolid Levatol Leucovorin Lomefloxacin Levocarnitine Leukine Lotrel Luminal Lopinavir/Ritonavir Lapatinib Lisdexamfetamine Lucentis Levocetirizine Lovaza Lybrel Lactic Acid/Salicylic Acid/Urea Letairis Lipofen Lo-Hist 12 12-Hour Sustained-Release Tablets Lodrane 12 Hour 12-Hour Sustained-Release Tablets Loratadine/Pseudoephedrine 12-Hour Sustained-Release Tablets Lodrane 24 24-Hour Sustained-Release Capsules Loratadine/Pseudoephedrine 24-Hour Sustained-Release Tablets Levalbuterol Aerosol Lanacane Aerosol Spray Lanoxin Capsules Lopinavir/Ritonavir Capsules Loperamide Capsules Librax Capsules Lantus Cartridge Systems Lantus Solostar Cartridge Systems Levemir Cartridges Lamictal Chewable Dispersible Tablets Lamotrigine Chewable Dispersible Tablets Loratadine Chewable Tablets Luride Chewable Tablets Lactase Chewable Tablets Lactaid Chewable Tablets Lactaid Ultra Chewable Tablets Lithobid Controlled-Release and Extended-Release Tablets Lithium Controlled-Release and Extended-Release Tablets Lusonex Controlled-Release Tablets Lagesic Controlled-Release Tablets Lidocaine/Prilocaine Cream Lotrisone Cream Loprox Cream Lidocaine/Hydrocortisone Cream LidaMantle HC Cream Lotrimin Cream Lamisil AT Cream LMX 5 Cream Lidosense 5 Cream Lidocaine Cream Lac-Hydrin Cream Lactic Acid Cream LidaMantle Cream L-M-X4 Cream Lidex-E Cream Lidex Cream Lactulose Crystals Lansoprazole Delayed-Release Capsules Lupron Depot Depot Suspension Leuprolide Depot Suspension Lidocaine/Prilocaine Disc Latanoprost Drops Levofloxacin Drops Lohist PD Drops Loteprednol Drops Loteprednol/Tobramycin Drops Levsin Drops Levobunolol Drops Little Colds Decongestant/Cough Drops Lotemax Drops Little Colds Multi-Symptom Drops Lumigan Drops Luride Drops Little Colds Decongestant Drops Lubricant Drops Lanoxin Elixir Lysiplex Elixir Levsin Elixir Levsinex Extended-Release Capsules Lovastatin Extended-Release Tablets Levbid Extended-Release Tablets Lescol XL Tablets Extended-Release Tablets Lescol XL Extended-Release Tablets Levofloxacin Eye Drops Luxiq Foam Lice Treatment Gel Lidocaine Gel Loprox Gel Lidex Gel Lamisil AT Gel Lactinex Granules Lactobacillus Granules Leuprolide Implant Librium Injection Leuprolide Injection Kit Lacrisert Insert Levonorgestrel IUD Lufyllin-GG Liquid Levall 5.0 Liquid Lusonal Liquid Lortuss HC Liquid Lortab Liquid Lortuss DM Liquid LidaMantle HC Lotion Lidocaine/Hydrocortisone Lotion Lidocaine Lotion LoKara Lotion Lindane Lotion Lotrimin AF Lotion Lactinol Lotion Lac-Hydrin Lotion Lactic Acid Lotion Lotrisone Lotion Lozi-Flur Lozenges Laryngesic Lozenges Lacri-Lube S.O.P. Ointment Lidocaine Ointment Loratadine Orally Disintegrating Tablets Lansoprazole Orally Disintegrating Tablets Lidoderm Patch Lidocaine Patch Lidocaine/Tetracaine Patch Lantus Solostar Pens Leucovorin Powder Lotrimin AF Powder Lansoprazole Powder Packet Listermint Rinse Licide Shampoo Lindane Shampoo Loprox Shampoo Levothyroxine Solution Lazerformalyde Solution Lidocaine Solution Lactulose Solution Lorazepam Solution Levall Solution Lomotil Solution Lidex Solution Levocarnitine Solution Levaquin Solution Levofloxacin Solution Loperamide Solution Lamivudine Solution Lotrimin AF Solution Levulan Kerastick Solution Lopinavir/Ritonavir Solution Lexapro Solution Levalbuterol Solution Levetiracetam Solution LiquiPrep Solution Leucovorin Solution Lamisil Spray Lamisil AT Spray Lente Iletin II Suspension Loprox Suspension Lorabid Suspension Loracarbef Suspension Leuprolide Suspension Lodrane D Suspension Linezolid Suspension Lupron Depot Suspension Lupron Depot 3.75 mg Suspension Levall-12 Suspension Lupron Depot 11.25 mg Suspension Lexiva Suspension Lodrane 12D Sustained-Release Tablets Liquibid-D Sustained-Release Tablets (12 Hour) Loratadine Syrup Lithium Syrup Linezolid Tablets Labetalol Tablets Levsin Tablets Levo-Dromoran Tablets Levorphanol Tablets Liothyronine Tablets Lopressor Tablets Levaquin Tablets Levofloxacin Tablets Lantus Vials Levemir Vials

Side Effects of L - for the consumer

Lisinopril

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lisinopril:

Cough; diarrhea; dizziness; headache; tiredness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lisinopril:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the hands, eyes, mouth, face, lips, or tongue; hoarseness); chest pain; dark urine; decreased urination; difficulty swallowing; infection (eg, fever, chills, persistent sore throat); irregular or slow heartbeat; stomach pain (with or without nausea or vomiting); symptoms of low blood pressure (eg, fainting, severe dizziness, lightheadedness); yellowing of the skin or eyes.

Lariam

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lariam:

Diarrhea; dizziness; drowsiness; fainting; fever; hair loss; headache; insomnia; lightheadedness; loss of appetite; loss of balance; muscle aches; nausea; ringing in the ears; stomach pain or upset; strange dreams; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lariam:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bizarre behavior; fast, slow, or irregular heartbeat; flu-like symptoms (chills, fever, muscle pain, headache); loss of coordination; muscle pain; numbness and tingling of hands or feet; paranoia; seizures; suicidal thoughts or behaviors; unexplained anxiety, mood changes, depression, hallucinations, restlessness, or confusion; vision changes.

Lopressor HCT

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lopressor HCT:

Cough; dizziness; lightheadedness; tiredness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lopressor HCT:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; irregular heartbeat; muscle pain or weakness; swelling of ankles or feet; unusual thirst or fatigue; unusually slow or irregular heartbeat.

Levlen

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levlen:

Acne; breast tenderness or enlargement; changes in appetite; changes in sexual interest; changes in weight; dizziness; hair loss; headache; nausea; stomach cramps or bloating; unusual spotting or bleeding; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Levlen:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); breast discharge; breast lumps; calf/leg pain, swelling, or tenderness; change in amount of urine produced; change in vaginal secretions; changes in vision or speech; confusion; coughing of blood; crushing chest pain or heaviness in the chest; dark-colored urine; depression; difficulty sleeping; difficulty wearing contact lenses; fainting; fluid retention (swelling of the fingers and ankles); lack of energy; light-colored bowel movements; mental or mood changes; missed menstrual period; numbness of an arm or leg; one-sided weakness; persistent headache or migraines; persistent or recurrent abnormal vaginal bleeding; persistent or severe dizziness; severe pain or tenderness in the stomach; sudden partial or complete loss of vision; sudden severe headache or vomiting; shortness of breath; tiredness; vaginal irritation or discharge; weakness; yellowing of the skin or eyes.

Levonorgestrel/Ethinyl Estradiol

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levonorgestrel/Ethinyl Estradiol:

Breast tenderness; changes in appetite; dizziness; headache; mild hair loss; nausea; nervousness; vaginal spotting or breakthrough bleeding; vomiting; weight gain.

Seek medical attention right away if any of these SEVERE side effects occur when using Levonorgestrel/Ethinyl Estradiol:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness); breast discharge; breast lumps; calf or leg pain, swelling, or tenderness; change in amount of urine produced; chest pain or heaviness; confusion; coughing of blood; dark urine; fainting; mental or mood changes (eg, depression); migraines; numbness of an arm or leg; one-sided weakness; pale stools; persistent, severe, or recurring headache or dizziness; persistent vaginal spotting; severe pain or tenderness in the stomach; shortness of breath; slurred speech; sudden severe headache or vomiting; swelling of the fingers, hands, legs, or ankles; unusual or severe vaginal bleeding; unusual tiredness or weakness; vaginal irritation, discharge, or odor; vision changes (eg, sudden vision loss, double vision); yellowing of the skin or eyes.

Lamivudine/Zidovudine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lamivudine/Zidovudine:

Appetite loss; changes in body fat; cough; diarrhea; dizziness; fatigue; headache; indigestion; nasal problems; sleeplessness or other sleep problems; tiredness; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lamivudine/Zidovudine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dark urine; depression; fast or irregular heartbeat; infection (fever, chills, sore throat); inflammation of the pancreas (severe stomach pain, nausea, vomiting); joint pain; mental/mood changes; muscle pain; nausea; numbness, tingling, or weakness in arms or legs; seizures; shortness of breath; stomach tenderness or pain; swelling or soreness of the mouth or tongue; unusual bleeding or bruising; unusual tiredness; unusual weakness or exhaustion; vomiting; yellowing of the skin or eyes.

Lodosyn

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lodosyn:

Confusion; constipation; diarrhea; dizziness; drowsiness; dry mouth; headache; loss of appetite; nausea; taste changes; trouble sleeping; upset stomach; urinary tract infection; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lodosyn:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); black, tarry stools; blood in vomit; chest pain; confusion; depression; fast or irregular heartbeat; fever; hallucinations; increased sweating; mental or mood changes; muscle pain or unusual stiffness; severe abdominal pain; severe lightheadedness or fainting; sore throat; thoughts of suicide; unusual bruising or bleeding; unusual or painful movements or spasms of the face, eyelids, mouth, tongue, arms, hands, or legs; vision changes (blurred/double vision); yellowing of the skin or eyes.

Lamisil

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lamisil:

Diarrhea; headache; indigestion; taste changes.

Seek medical attention right away if any of these SEVERE side effects occur when using Lamisil:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness); red, blistered, peeling, or swollen skin; symptoms of infection (eg, fever, chills, sore throat); symptoms of liver problems (eg, dark urine; loss of appetite; pale stools; stomach pain; unexplained, persistent nausea; unusual tiredness; vomiting; yellowing of the skin or eyes); unusual bruising or bleeding; vision changes.

Limbrel

All medicines may cause side effects, but many people have no, or minor, side effects. When used in small doses, no COMMON side effects have been reported with Limbrel. Seek medical attention right away if any of these SEVERE side effects occur when using Limbrel:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

Lodoxamide

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lodoxamide:

Blurred vision; burning, stinging, or itching in the eye; dry eyes; eye discomfort; headache; red or bloodshot eyes; sensation of something in the eye; tearing.

Seek medical attention right away if any of these SEVERE side effects occur when using Lodoxamide:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); eye discharge; scales on the eyelid or eyelash; severe or persistent burning, stinging, or itching; vision changes; swelling of the eye or eyelid.

Labetalol

All medicines may cause side effects, but many people have no, or minor side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Labetalol:

Dizziness; indigestion; lightheadedness; nausea; pain, swelling, or redness at the injection site; stuffy nose; temporary tingling of the scalp; unusual tiredness.

Seek medical attention right away if any of these SEVERE side effects occur when using Labetalol:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; dark urine; decreased sexual ability; fever, chills, or persistent sore throat; mental or mood changes; muscle pain or tenderness; persistent loss of appetite; right upper stomach pain; shortness of breath; slow heartbeat; swelling of the hands or feet; unusual bruising or bleeding; vision changes; yellowing of the skin or eyes.

Lomustine (CCNU)

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lomustine (CCNU):

Loss of appetite; nausea; occasional hair loss; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lomustine (CCNU):

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blindness; chest pain; chills; confusion or disorientation; decreased amount of urine; dry cough; fever; shortness of breath; sore throat; sores on your mouth or lips; swelling of feet or lower legs; trouble speaking; trouble walking or keeping your balance; unusual bleeding or bruising; unusual fatigue or weakness; vision changes; yellowing of skin or eyes.

Lexiva

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lexiva:

Changes in body fat distribution; diarrhea; headache; nausea; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lexiva:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); loss of appetite; signs of infection (eg, fever, chills, sore throat); swollen, reddened, or blistered skin; unusual increase in thirst or urination; weight loss; yellowing of skin or eyes.

Lopressor

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lopressor:

Blurred vision; cold hands and feet; confusion; constipation; depression; diarrhea; dizziness; dry mouth/eyes; gas; hair loss; headache; heartburn; itching; lightheadedness; mild drowsiness; muscle aches; nausea; nightmares; ringing in the ears; short-term memory loss; sleeplessness; stomach pain; unusual tiredness or weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lopressor:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; fainting; pounding in the chest; swelling of the arms, hands, and feet; wheezing; yellowing of the skin or eyes.

Lotensin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lotensin:

Cough; dizziness, especially upon standing; headache; nausea; sleepiness; tiredness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lotensin:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; chills; fainting; fever; hoarseness; irregular or slow heartbeat; lightheadedness; sore throat; unusual stomach pain; yellowing of the skin or eyes.

Lovenox

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lovenox:

Confusion; diarrhea; mild pain; nausea; pain, swelling, redness, bleeding, or bruising at the injection site.

Seek medical attention right away if any of these SEVERE side effects occur when using Lovenox:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bloody, black, or tarry stools; chills; difficulty urinating; difficulty walking; fever; leg weakness; numbness; pink or red urine; swelling; tingling; unusual bleeding or bruising.

Lipitor

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lipitor:

Constipation; gas; headache; stomach pain or upset; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lipitor:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bone, joint, or tendon pain; change in the amount of urine produced; chest pain; dark urine; fever, chills, or persistent sore throat; flu-like symptoms; joint pain; muscle pain, tenderness, or weakness (with or without fever or fatigue); painful or frequent urination; pale stools; red, swollen, blistered, or peeling skin; severe stomach pain; swelling of the hands, ankles, or feet; yellowing of the eyes or skin.

Luveris

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Luveris:

Constipation; diarrhea; gas; headache; nausea; pain, redness, or swelling at the injection site; tiredness.

Seek medical attention right away if any of these SEVERE side effects occur when using Luveris:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); breast pain; decrease in the amount of urine produced; pain, tenderness, redness, or swelling of the leg; severe pelvic pain; severe or persistent nausea, vomiting, or diarrhea; shortness of breath; stomach pain or swelling; unexplained weight gain.

Lutropin Alfa

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lutropin Alfa:

Constipation; diarrhea; gas; headache; nausea; pain, redness, or swelling at the injection site; tiredness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lutropin Alfa:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); breast pain; decrease in the amount of urine produced; pain, tenderness, redness, or swelling of the leg; severe pelvic pain; severe or persistent nausea, vomiting, or diarrhea; shortness of breath; stomach pain or swelling; unexplained weight gain.

Limbitrol DS

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Limbitrol DS:

Abnormal skin sensations; bloating; blurred vision; constipation; diarrhea; disturbed concentration; dizziness; drowsiness; dry mouth; headache; loss of appetite; nausea; restlessness; tiredness; upset stomach; vomiting; weakness; weight gain or loss.

Seek medical attention right away if any of these SEVERE side effects occur when using Limbitrol DS:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; confusion; decreased sexual ability; decreased or increased urination; decreased coordination; delusions; disorientation; fast or irregular heartbeat; fainting; fever, chills, or persistent sore throat; hallucinations; involuntary movements of tongue, face, mouth, or jaw (eg, protrusion of tongue, puffing of cheeks, puckering of mouth, chewing movements), sometimes accompanied by involuntary movements of the arms and legs; lightheadedness; mental or mood changes; numbness of an arm or leg; one-sided weakness; pounding in the chest; seizures; severe constipation; speech problems; sudden severe dizziness, headache, stomach pain, or vomiting; tremors; unusual bleeding or bruising; yellowing of the skin or eyes.

Loestrin 1/20

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Loestrin 1/20:

Breast tenderness; bleeding between menstrual periods; change in vaginal mucus; headache; loss of scalp hair; nausea; nervousness; rash; spotty darkening of the skin (especially on the face); stomach cramps and bloating; vaginal infection; vomiting; weight or appetite change.

Seek medical attention right away if any of these SEVERE side effects occur when using Loestrin 1/20:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); breast lumps; calf or leg pain or swelling; chest pain; coughing of blood; dark urine or light-colored bowel movements; depression; dizziness or fainting; fever; heaviness in the chest; lack of energy or fatigue; loss of appetite; mood change; numbness in arm or leg; partial or complete loss of vision or other vision changes; sleeping problems; slurred speech; stomach pain or tenderness; sudden severe headache; sudden shortness of breath; swelling of the fingers or ankles; weakness on one side of the body; yellowing of the skin or eyes.

Lansoprazole

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lansoprazole:

Constipation; diarrhea; headache; nausea; pain, swelling, or redness at the injection site; stomach pain.

Seek medical attention right away if any of these SEVERE side effects occur when using Lansoprazole:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness); chest pain; fast or irregular heartbeat; fever, chills, or sore throat; red, swollen, blistered, or peeling skin; seizure; unusual bruising or bleeding; unusual tiredness; vision changes.

Librax

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Librax:

Bloating; blurred vision; clumsiness; confusion; constipation; decreased sweating; difficulty sleeping; dizziness; enlarged pupils; excessive daytime drowsiness; headache; lack of coordination; lightheadedness; nausea; nervousness; unsteadiness.

Seek medical attention right away if any of these SEVERE side effects occur when using Librax:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); changes in heartbeat; decreased urination; decreased sexual ability or desire; diarrhea; difficulty focusing your eyes; fainting; fast heartbeat; fever, chills, or persistent sore throat; involuntary muscle movements; loss of taste; mental or mood changes; overexcitement; overstimulation; pounding in the chest; swelling; unusual weakness; vomiting; yellowing of the skin or eyes.

Lysodren

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lysodren:

Diarrhea; dizziness; drowsiness; lack of energy; loss of appetite; nausea; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lysodren:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in the urine; blurred vision, double vision, or other vision changes; fainting; fever; severe or persistent dizziness, drowsiness, lightheadedness, or tiredness.

Lubiprostone

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lubiprostone:

Back pain; diarrhea; dizziness; gas; headache; heartburn; nausea; stomach pain, upset, or bloating; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lubiprostone:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); burning or tingling of the skin; chest discomfort; depression; increased, decreased, or painful urination; irregular heartbeat; severe or persistent diarrhea; shortness of breath; swelling of the hands or feet.

Lithostat

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lithostat:

Anxiety; general body discomfort; hair loss; loss of appetite; mild headaches; nausea; nervousness; shakiness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lithostat:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood vessel inflammation; calf pain, swelling, or tenderness; dark urine; depression; emotional or mood changes; irregular heartbeat; severe nausea, vomiting, or fatigue; unusual tiredness or weakness; yellowing of skin or eyes.

Lincocin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lincocin:

Diarrhea; infrequent urination; nausea; pain or irritation at the injection site; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lincocin:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood or mucus in stools; decreased urine; difficulty swallowing; dizziness; red, swollen, or blistered skin; severe or continuing diarrhea; stomach pain/cramps; swelling of hands, eyes, or throat; yellowing of skin or eyes.

Lincomycin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lincomycin:

Diarrhea; infrequent urination; nausea; pain or irritation at the injection site; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lincomycin:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood or mucus in stools; decreased urine; difficulty swallowing; dizziness; red, swollen, or blistered skin; severe or continuing diarrhea; stomach pain/cramps; swelling of hands, eyes, or throat; yellowing of skin or eyes.

Lactic Acid with Vitamin E

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lactic Acid with Vitamin E:

Burning; dry skin; flushing; irritation; itching; stinging.

Seek medical attention right away if any of these SEVERE side effects occur when using Lactic Acid with Vitamin E:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); worsening of condition.

Lactinol-E

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lactinol-E:

Burning; dry skin; flushing; irritation; itching; stinging.

Seek medical attention right away if any of these SEVERE side effects occur when using Lactinol-E:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); worsening of condition.

Leflunomide

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Leflunomide:

Back pain; bronchitis; diarrhea; dizziness; dry skin; hair loss; headache; increased cough; indigestion; joint disorder; loss of appetite; muscle aches; nausea; runny nose; sinus infection; upper respiratory tract infection; urinary tract infection; vomiting; weakness; weight loss.

Seek medical attention right away if any of these SEVERE side effects occur when using Leflunomide:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blistering or peeling skin; blisters on the inside of eyes, nose, or mouth; chest pain; dark urine; easy bruising/bleeding; feelings of numbness or tingling; fever; infection; muscle cramps, including leg cramps; pale skin; pale stools; sore throat; stomach pain; unusual tiredness; vomiting; yellowing of the eyes or skin.

Levacet

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levacet:

Heartburn; nausea; upset stomach.

Seek medical attention right away if any of these SEVERE side effects occur when using Levacet:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); black or bloody stools; confusion; dark urine or pale stools; diarrhea; dizziness; drowsiness; hearing loss; ringing in the ears; severe stomach pain; unusual tiredness; vomiting; yellowing of the skin or eyes.

Lotensin HCT

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lotensin HCT:

Coughing; diarrhea; dizziness; headache; lightheadedness; nausea; persistent nonproductive cough; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lotensin HCT:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty swallowing; fainting; fast, slow, or irregular heartbeat; fever; muscle cramps; muscle weakness; severe dizziness or lightheadedness; shortness of breath; sore throat; unusual stomach pain; yellowing of the skin or eyes.

L-Methylfolate

All medicines may cause side effects, but many people have no, or minor, side effects. No COMMON side effects have been reported with L-Methylfolate . Seek medical attention right away if any of these SEVERE side effects occur when using L-Methylfolate:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

Librium

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Librium:

Clumsiness; confusion; dizziness; excessive daytime drowsiness; headache; lack of coordination; lightheadedness; unsteadiness; unusual weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Librium:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); yellowing of the skin or eyes.

Lopid

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lopid:

Blurred vision; diarrhea; dizziness; gas; headache; indigestion; nausea; stomach pain; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lopid:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); diarrhea; muscle pain; nausea; persistent or severe stomach pain; tenderness; vomiting; weakness.

Lioresal

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lioresal:

Back pain; constipation; diarrhea; dizziness; drowsiness; fatigue; headache; increased breathing; increased salivation; itching; muscle weakness; nausea; problems urinating.

Seek medical attention right away if any of these SEVERE side effects occur when using Lioresal:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); agitation; chills; inability to urinate; loss of muscle tone; seizures.

Lactaid

All medicines may cause side effects, but many people have no, or minor, side effects. When used in small doses, no COMMON side effects have been reported with Lactaid . Seek medical attention right away if any of these SEVERE side effects occur when using Lactaid:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

Lactase

All medicines may cause side effects, but many people have no, or minor, side effects. When used in small doses, no COMMON side effects have been reported with Lactase . Seek medical attention right away if any of these SEVERE side effects occur when using Lactase:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

Lemohist Plus

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lemohist Plus:

Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lemohist Plus:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating or inability to urinate; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; tremor; trouble sleeping; vision changes.

Lanoxin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lanoxin:

Diarrhea; fast, slow, or irregular heartbeat; loss of appetite; nausea; vomiting; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lanoxin:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); heart disturbances.

Lanthanum Carbonate

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lanthanum Carbonate:

Bronchitis; constipation; diarrhea; headache; nausea; runny nose; stomach pain; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lanthanum Carbonate:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dizziness; fainting; fatigue; unusual weakness.

Losartan

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Losartan:

Diarrhea; dizziness; tiredness; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Losartan:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; dark urine; decreased amount of urine; hoarseness; irregular heartbeat; muscle pain or tenderness; stomach pain; yellowing of the eyes or skin.

Lexapro

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lexapro:

Constipation; decreased sexual desire or ability; diarrhea; dizziness; drowsiness; dry mouth; headache; increased sweating; lightheadedness when you stand or sit up; loss of appetite; nausea; stomach upset; tiredness; trouble sleeping.

Seek medical attention right away if any of these SEVERE side effects occur when using Lexapro:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bizarre behavior; black or bloody stools; chest pain; confusion; decreased concentration; fast or irregular heartbeat; hallucinations; memory loss; menstrual period changes; new or worsening agitation, panic attacks, aggressiveness, impulsiveness, irritability, hostility, exaggerated feeling of well-being, restlessness, or inability to sit still; persistent or severe ringing in the ears;persistent, painful erection; red, swollen, blistered, or peeling skin; seizures; severe or persistent anxiety or trouble sleeping; stomach pain; suicidal thoughts or attempts; tremor; unusual bruising or bleeding; unusual or severe mental or mood changes; vision changes; worsening of depression.

Lepirudin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lepirudin:

Redness or discomfort at the injection site.

Seek medical attention right away if any of these SEVERE side effects occur when using Lepirudin:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); black or bloody stools; confusion; dark urine; easy bruising or bleeding; fever; nausea or vomiting; one-sided weakness; slurred speech; vision problems; vomit that looks like coffee grounds; yellowing eyes or skin.

L-Methylfolate with Vitamins B6 and B12

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using L-Methylfolate with Vitamins B6 and B12:

Drowsiness; feeling of swelling of the entire body; mild diarrhea; numbness or tingling.

Seek medical attention right away if any of these SEVERE side effects occur when using L-Methylfolate with Vitamins B6 and B12:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dizziness; itching.

L-Methylfolate/Methylcobalamin/N-Acetylcysteine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using L-Methylfolate/Methylcobalamin/N-Acetylcysteine:

Bloated feeling; headache; itching; mild diarrhea; mild fever; nausea; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using L-Methylfolate/Methylcobalamin/N-Acetylcysteine:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); lower back or side pain.

Levetiracetam

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levetiracetam:

Dizziness; drowsiness; loss of appetite; runny nose; tiredness; vomiting; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Levetiracetam:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); behavioral changes (eg, aggression; agitation; anger; apathy; irritability); changes in vision; decreased coordination; depression; fever, chills, or sore throat; hallucinations; memory loss; mental or mood changes; new or worsening seizures; suicidal thoughts or attempts; unusual bruising or bleeding; yellowing of the skin or eyes.

Lamivudine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lamivudine:

Changes in body fat; chills; coughing; decreased appetite; diarrhea; difficulty sleeping; dizziness; ear, nose, and throat infection; general body discomfort; headache; indigestion; joint pain; muscle pain; nausea; sinus drainage; sore throat; stomach discomfort; tiredness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lamivudine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dark urine; depression (mental or mood changes); enlarged stomach; increased heart rate; numbness or tingling in the arms or legs; persistent sore throat, chills, or fever; severe muscle or joint pain; stomach tenderness or pain; unusual bleeding or bruising; unusual weakness or exhaustion; vomiting; yellowing of the skin or eyes.

This is not a complete list of all side effects that may occur. If you have questions or need medical advice about side effects, contact your doctor or health care provider. You may report side effects to the FDA at 1-800-FDA-1088 (1-800-332-1088) or at http://www.fda.gov/medwatch.

Leustatin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Leustatin:

Diarrhea; dizziness; headache; low fever; muscle or joint pain; nausea; tiredness or weakness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Leustatin:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); back or side pain; black, tarry stools; blood in the urine; chills; cough; irritation or pain at the injection site; painful or difficult urination; persistent low or high fever; severe or persistent vomiting; unusual bleeding or bruising.

Lortab

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lortab:

Blurred vision; constipation; difficulty breathing; dizziness; drowsiness; flushing; lightheadedness; mental/mood changes; nausea; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lortab:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); anxiety; change in the amount of urine; change or loss in hearing; fear; interrupted breathing; mental or mood changes; unusual tiredness.

Liotrix

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Liotrix:

Partial, temporary hair loss in children.

Seek medical attention right away if any of these SEVERE side effects occur when using Liotrix:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); changes in appetite; changes in menstrual periods; changes in weight; chest pain; diarrhea; excessive sweating; inability to tolerate warm or hot room/weather conditions; increased heart rate; nervousness; pounding in the chest; tremors; vomiting.

Levonorgestrel

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levonorgestrel:

Breast tenderness; changes in menstrual flow; diarrhea; dizziness; headache; nausea; stomach pain; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Levonorgestrel:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); lower stomach pain; missed menstrual period; spotting instead of your usual period.

Licorice

All medicines may cause side effects, but many people have no, or minor, side effects. When used in small doses, no COMMON side effects have been reported with Licorice. Seek medical attention right away if any of these SEVERE side effects occur when using Licorice:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); confusion; depression; flushing; headache; irregular heartbeat; lack of concern; loss of appetite; muscle weakness or paralysis; swelling of the ankles, feet, or hands; nausea; vomiting.

Lovastatin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lovastatin:

Constipation.

Seek medical attention right away if any of these SEVERE side effects occur when using Lovastatin:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; dark urine; muscle pain, tenderness, or weakness (with or without fever or fatigue); pale stools; red, swollen, blistered, or peeling skin; severe stomach pain; yellowing of the skin or eyes.

Levsin/SL

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levsin/SL:

Bloated feeling; blurred vision; constipation; decreased sweating; dizziness; drowsiness; dry mouth; enlarged pupils; excitement; headache; nausea; nervousness; trouble sleeping; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Levsin/SL:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); agitation; behavior changes; confusion; decreased sexual ability; diarrhea; difficulty focusing eyes; disorientation; exaggerated sense of well-being; fast or irregular heartbeat; hallucinations; loss of consciousness; loss of coordination; memory loss; mental or mood changes; severe or persistent trouble sleeping; speech changes; taste changes; trouble urinating; unusual tiredness or weakness; vision changes; vomiting.

Lufyllin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lufyllin:

Headache; nausea; upset stomach.

Seek medical attention right away if any of these SEVERE side effects occur when using Lufyllin:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in the urine; bloody vomit; diarrhea; dizziness; excitability; fast breathing; fast/irregular heartbeat; flushing; increased thirst or urination; irritability; muscle twitching; pounding in the chest; restlessness; seizures; stomach pain; trouble sleeping; vomiting.

Lonox

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lonox:

Blurred vision; constipation; decreased sweating; difficulty sleeping; dizziness; drowsiness; dry mouth, nose, or skin; headache; loss of appetite; loss of taste; nausea; nervousness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lonox:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); abdominal bloating or swelling; agitation; changes in heartbeat; confusion; continued or severe diarrhea; delirium; difficulty focusing your eyes; difficulty urinating; exaggerated sense of well-being; excitement; fast/irregular heartbeat; fever; hallucinations; numbness of the hands or feet; severely enlarged pupils; severe or prolonged restlessness; speech disturbance; unusual weakness; vomiting.

Lomotil

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lomotil:

Blurred vision; constipation; decreased sweating; difficulty sleeping; dizziness; drowsiness; dry mouth, nose, or skin; headache; loss of appetite; loss of taste; nausea; nervousness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lomotil:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); abdominal bloating or swelling; agitation; changes in heartbeat; confusion; continued or severe diarrhea; delirium; difficulty focusing your eyes; difficulty urinating; exaggerated sense of well-being; excitement; fast/irregular heartbeat; fever; hallucinations; numbness of the hands or feet; severely enlarged pupils; severe or prolonged restlessness; speech disturbance; unusual weakness; vomiting.

Lunesta

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lunesta:

Anxiety; decrease in sexual desire; difficulty with coordination; dizziness; drowsiness; dry mouth; headache; indigestion; lightheadedness; nausea; nervousness; unpleasant taste; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lunesta:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); aggressive behavior; breast growth; chest pain; confusion; depression; hallucinations; memory problems (such as amnesia); painful menstrual periods; seizures; severe mood swings; suicidal thoughts; swelling of hands or feet; symptoms of infection (eg, fever, sore throat, and sinus or chest congestion); unusual or disturbing thoughts.

Lozol

All medicines may cause side effects, but many people have no, or minor side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lozol:

Back pain; diarrhea; dizziness or lightheadedness when siting up or standing; headache; infection; nervousness; pain; runny nose; trouble sleeping; upset stomach.

Seek medical attention right away if any of these SEVERE side effects occur when using Lozol:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; drowsiness; fatigue; irregular heartbeat; muscle cramps; numbness of your hands or feet; pounding in the chest; rapid heartbeat; unusual tiredness; urination problems; weakness; yellowing of the skin or eyes.

Leukeran

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Leukeran:

Agitation; clumsiness; confusion; diarrhea; tingling or numbness in the hands and feet; tiredness; tremors; twitching.

Seek medical attention right away if any of these SEVERE side effects occur when using Leukeran:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); absence of monthly period; chills; congestion; excessive tiredness; fever; hallucinations; hip, stomach, or joint pain; infertility; nausea; persistent cough; seizures; shortness of breath or difficulty breathing; sore throat; sores in the mouth or on the lips; unusual bruising or bleeding; unusual lumps or masses; vomiting; yellowing of the skin or eyes.

Lithium

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lithium:

Mild hand tremor; mild thirst; temporary, mild nausea and general discomfort at the beginning of treatment.

Seek medical attention right away if any of these SEVERE side effects occur when using Lithium:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision; confusion; diarrhea; drowsiness; excessive weight gain; fainting; giddiness; inability to control the bladder or bowels; increased thirst; increased or decreased urination; involuntary twitching or muscle movements; loss of consciousness; loss of coordination; muscle weakness; persistent headache; persistent or severe nausea; ringing in the ears; seizures; slow or irregular heartbeat; slurred speech; swelling of the ankles or wrists; unsteadiness; vision changes; vomiting.

Lexxel

All medicines may cause side effects, but many people have no, or minor side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lexxel:

Diarrhea; dizziness or lightheadedness when sitting up or standing; drowsiness; headache; nausea; persistent, dry cough; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lexxel:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); breast changes; changes in sexual function; chest pain; dry mouth; fainting; fast, slow, or irregular heartbeat; hoarseness; infection (fever, sore throat); infrequent urination; lethargy; muscle pain or cramps; muscle weakness; restlessness; thirst; unusual stomach pain; unusual swelling; weakness; yellowing of the skin or eyes.

Losartan/Hydrochlorothiazide

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Losartan/Hydrochlorothiazide:

Back pain; diarrhea; dizziness; lightheadedness, especially when sitting up or standing; nausea; numbness or tingling of the skin; tiredness.

Seek medical attention right away if any of these SEVERE side effects occur when using Losartan/Hydrochlorothiazide:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; confusion; decrease in sexual ability; decreased urination; depression; drowsiness; fainting; fast or irregular heartbeat; fever, chills, or persistent sore throat; hoarseness; muscle pain, tenderness, or cramps; red, swollen, blistered, or peeling skin; restlessness; seizures; severe or persistent dry mouth; shortness of breath; swelling of the arms or legs; unusual bruising or bleeding; unusual thirst; unusual tiredness or weakness; vomiting; yellowing of the skin or eyes.

Loracarbef

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Loracarbef:

Diarrhea; dizziness; drowsiness; headache; loss of appetite; nausea; stomach pain; stuffy nose; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Loracarbef:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bloody stools; decreased urination; fever; hoarseness; red, swollen, or blistered skin; seizures; severe diarrhea; severe nausea or vomiting; severe stomach pain or cramps; unusual bruising or bleeding; unusual tiredness; vaginal irritation or discharge; yellowing of the eyes or skin.

Lorabid

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lorabid:

Diarrhea; dizziness; drowsiness; headache; loss of appetite; nausea; stomach pain; stuffy nose; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lorabid:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bloody stools; decreased urination; fever; hoarseness; red, swollen, or blistered skin; seizures; severe diarrhea; severe nausea or vomiting; severe stomach pain or cramps; unusual bruising or bleeding; unusual tiredness; vaginal irritation or discharge; yellowing of the eyes or skin.

Loestrin Fe 1/20

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Loestrin Fe 1/20:

Breast tenderness or enlargement; changes in appetite; changes in weight; dizziness; headache; mild hair loss; nausea; nervousness; stomach cramps or bloating; vaginal spotting or breakthrough bleeding.

Seek medical attention right away if any of these SEVERE side effects occur when using Loestrin Fe 1/20:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); absent menstrual period; breast discharge; breast lumps; calf or leg pain, swelling, or tenderness; change in amount of urine produced; chest pain or heaviness; confusion; coughing of blood; dark urine; fainting; mental or mood changes (eg, depression); migraines; numbness of an arm or leg; one-sided weakness; pale stools; persistent vaginal spotting; persistent, severe, or recurring headache or dizziness; severe pain or tenderness in the stomach; shortness of breath; slurred speech; sudden severe headache or vomiting; swelling of the fingers, hands, legs, or ankles; unusual or severe vaginal bleeding; unusual tiredness or weakness; vaginal irritation, discharge, or change in secretions; vision changes (eg, sudden vision loss, double vision); yellowing of the skin or eyes (with or without fever).

Lotronex

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lotronex:

Headache; heartburn; hemorrhoids; indigestion; nausea; stomach discomfort and pain.

Seek medical attention right away if any of these SEVERE side effects occur when using Lotronex:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bloating; bloody diarrhea; bloody stools; constipation; depression; new or worsening stomach discomfort or pain; rectal bleeding; unexplained fever; unusually fast pulse.

Lisinopril/Hydrochlorothiazide

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lisinopril/Hydrochlorothiazide:

Coughing; diarrhea; dizziness; headache; lightheadedness; nausea; persistent nonproductive cough; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lisinopril/Hydrochlorothiazide:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); confusion; difficulty swallowing; fainting; fast, slow, or irregular heartbeat; fever; hoarseness; increased hunger or thirst; muscle cramps; muscle weakness; severe dizziness or lightheadedness; shortness of breath; sore throat; unusual or severe drowsiness; unusual stomach pain; yellowing of the skin or eyes.

Lymphocyte Immune Globulin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lymphocyte Immune Globulin:

Diarrhea; headache; joint pain; nausea; night sweats; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Lymphocyte Immune Globulin:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); back pain; chest pain; confusion or disorientation; decreased urination or dark urine; fast, slow, or irregular heartbeat; fever, chills, or sore throat; irritation or sores in the mouth; muscle pain; pain, redness, or swelling at the injection site; pain or swelling in the legs; pain or swelling in the neck or under the arms; red, swollen, or blistered skin; seizures; severe dizziness, lightheadedness, or headache; stomach pain; unusual bleeding or bruising; unusual skin sensations (eg, burning or tingling).

Loperamide/Simethicone

All medicines may cause side effects, but many people have no, or minor, side effects. No COMMON side effects have been reported with Loperamide/Simethicone. Seek medical attention right away if any of these SEVERE side effects occur when using Loperamide/Simethicone:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); constipation; decreased urination; red, swollen, blistered, or peeling skin; stomach bloating, swelling, or pain.

Levsin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levsin:

Bloated feeling; blurred vision; constipation; decreased sweating; dizziness; drowsiness; dry mouth; enlarged pupils; excitement; headache; nausea; nervousness; trouble sleeping; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Levsin:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); diarrhea; difficulty focusing eyes; difficulty urinating; fast or irregular heartbeat; hallucinations; memory loss; pounding in the chest; unusual weakness; vomiting.

Lo/Ovral

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lo/Ovral:

Acne; breast tenderness or enlargement; changes in appetite; changes in weight; dizziness; headache; mild hair loss; nausea; nervousness; stomach cramps or bloating; vaginal spotting or breakthrough bleeding.

Seek medical attention right away if any of these SEVERE side effects occur when using Lo/Ovral:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue, unusual hoarseness); absent menstrual period; breast discharge; breast lumps; calf or leg pain, swelling, or tenderness; change in the amount of urine produced; chest pain or heaviness; confusion; coughing of blood; dark urine; fainting; mental or mood changes (eg, depression); migraines; numbness of an arm or leg; one-sided weakness; pale stools; persistent, severe, or recurring headache or dizziness; persistent vaginal spotting; severe pain or tenderness in the stomach; shortness of breath; slurred speech; sudden severe headache or vomiting; swelling of the fingers, hands, legs, or ankles; unusual or severe vaginal bleeding; unusual tiredness or weakness; vaginal irritation, discharge, or change in secretions; vision changes (eg, sudden vision loss, double vision); yellowing of the skin or eyes (with or without fever).

Levaquin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levaquin:

Diarrhea; dizziness; gas; lightheadedness; nausea; stomach pain.

Seek medical attention right away if any of these SEVERE side effects occur when using Levaquin:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bloody stools; chest pain; confusion; dark urine; decreased or painful urination; fainting; fast or irregular heartbeat; fever, chills, or sore throat; hallucinations; hoarseness; joint or muscle pain or weakness; mental or mood changes (eg, depression, anxiety, paranoia); new or worsening nightmares, restlessness, or trouble sleeping; red, swollen, blistered, or peeling skin; seizures; severe diarrhea; severe or persistent dizziness, lightheadedness, tiredness, or weakness; severe sunburn; shortness of breath; stomach pain/cramps; suicidal thoughts or actions; symptoms of high or low blood sugar (eg, increased thirst, hunger, or urination; fast breathing; flushing; dizziness; fainting; increased sweating; vision changes); symptoms of nerve problems (eg, unusual pain, burning, tingling, or numbness; changes in perception or heat or cold; decreased sensation of touch); tremors; unusual bruising or bleeding; vaginal discharge, irritation, or odor; wheezing; yellowing of the skin or eyes.

Levofloxacin

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levofloxacin:

Diarrhea; dizziness; gas; lightheadedness; nausea; stomach pain.

Seek medical attention right away if any of these SEVERE side effects occur when using Levofloxacin:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bloody stools; chest pain; confusion; dark urine; decreased or painful urination; fainting; fast or irregular heartbeat; fever, chills, or sore throat; hallucinations; hoarseness; joint or muscle pain or weakness; mental or mood changes (eg, depression, anxiety, paranoia); new or worsening nightmares, restlessness, or trouble sleeping; red, swollen, blistered, or peeling skin; seizures; severe diarrhea; severe or persistent dizziness, lightheadedness, tiredness, or weakness; severe sunburn; shortness of breath; stomach pain/cramps; suicidal thoughts or actions; symptoms of high or low blood sugar (eg, increased thirst, hunger, or urination; fast breathing; flushing; dizziness; fainting; increased sweating; vision changes); symptoms of nerve problems (eg, unusual pain, burning, tingling, or numbness; changes in perception or heat or cold; decreased sensation of touch); tremors; unusual bruising or bleeding; vaginal discharge, irritation, or odor; wheezing; yellowing of the skin or eyes.

Lenalidomide

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lenalidomide:

Back pain; constipation; cough; diarrhea; dizziness; dry mouth or skin; headache; increased sweating or night sweats; loss of appetite; nausea; stuffy or runny nose; tiredness; trouble sleeping; vomiting; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lenalidomide:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in the stools or vomit; chest pain; dark urine; fast, slow, or irregular heartbeat; fever, chills, or sore throat; muscle cramps; muscle or joint pain; pain, numbness, tingling, tenderness, or swelling of the arms or legs; painful or difficult urination; severe tiredness or weakness; shortness of breath; stomach pain; unusual bruising or bleeding.

Lupron Depot-PED

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lupron Depot-PED:

Acne; breast enlargement; excessively oily skin; pain; vaginal bleeding or spotting; vaginal discharge; vaginal inflammation.

Seek medical attention right away if any of these SEVERE side effects occur when using Lupron Depot-PED:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); fainting; increased sexual maturity; irritation at the injection site; mood or mental changes.

Leuprolide

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Leuprolide:

Breast tenderness; constipation; decreased sex drive; difficulty sleeping; hot flashes/sweating; impotence; infection (fever, chills, sore throat); nausea or vomiting; pain; swelling; urination problems.

Seek medical attention right away if any of these SEVERE side effects occur when using Leuprolide:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in urine; chest pain; dizziness or lightheadedness; fast or irregular heartbeat; increase in bone pain; severe drowsiness; severe headache; swelling of the lungs; unusual or one-sided weakness; vision changes.

Lorazepam

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lorazepam:

Clumsiness; dizziness; drowsiness; headache; lightheadedness; unsteadiness; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Lorazepam:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); memory loss; mood or mental changes (eg, depression).

Loratadine

All medicines may cause side effects, but many people have no, or minor, side effects. No COMMON side effects have been reported with Loratadine. Seek medical attention right away if any of these SEVERE side effects occur when using Loratadine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); severe or persistent dizziness.

Lupron

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lupron:

Breast tenderness; constipation; decreased sex drive; difficulty sleeping; hot flashes/sweating; impotence; infection (fever, chills, sore throat); nausea or vomiting; pain; swelling; urination problems.

Seek medical attention right away if any of these SEVERE side effects occur when using Lupron:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in urine; chest pain; dizziness or lightheadedness; fast or irregular heartbeat; increase in bone pain; severe drowsiness; severe headache; swelling of the lungs; unusual or one-sided weakness; vision changes.

Lasix

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lasix:

Dizziness; lightheadedness; sensitivity to sunlight.

Seek medical attention right away if any of these SEVERE side effects occur when using Lasix:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); calf pain or tenderness; confusion; dark urine; decreased or persistent increased urination; drowsiness; dry mouth; fast or irregular heartbeat; fever, chills, or sore throat; hearing decrease or loss; muscle pain/cramps/weakness; restlessness; ringing in the ears; severe or persistent nausea, vomiting, or dizziness; shortness of breath; sluggishness; stomach pain; unusual bleeding or bruising; unusual thirst or hunger; unusual tiredness or weakness; vein inflammation; yellow vision; yellowing of the skin or eyes.

Lescol

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lescol:

Headache; stomach pain or upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Lescol:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); change in the amount of urine produced; chest pain; dark urine; fever, chills, or persistent sore throat; flu-like symptoms; joint pain; mental or mood changes; muscle pain, tenderness, or weakness (with or without fever or fatigue); numbness or tingling of the skin, arm, or leg; painful or frequent urination; pale stools; red, swollen, blistered, or peeling skin; severe stomach pain; yellowing of the eyes or skin.

Levitra

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levitra:

Dizziness; flushing; headache; heartburn; stuffy or runny nose; upset stomach.

Seek medical attention right away if any of these SEVERE side effects occur when using Levitra:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); back or muscle pain; chest pain; fainting; prolonged, painful erection; ringing in the ears; severe or persistent dizziness; severe or persistent vision changes; sudden hearing loss.

Levoxyl

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levoxyl:

Anxiety; diarrhea; flushing; mood swings; muscle weakness; partial, temporary hair loss; sleeplessness; stomach cramps; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Levoxyl:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); changes in appetite; changes in menstrual periods; chest pain; difficulty breathing; excessive sweating; fast heartbeat; fever; headache; hives or skin rash; hyperactivity; inability to handle warm or hot room/weather conditions; irregular heartbeat; irritability; leg cramps; nervousness; pounding in the chest; seizures; shortness of breath; tremors; weight gain or weight loss.

Levothyroxine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levothyroxine:

Anxiety; diarrhea; flushing; mood swings; muscle weakness; partial, temporary hair loss; sleeplessness; stomach cramps; tiredness; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Levothyroxine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); changes in appetite; changes in menstrual periods; chest pain; difficulty breathing; excessive sweating; fast heartbeat; fever; headache; hives or skin rash; hyperactivity; inability to handle warm or hot room/weather conditions; irregular heartbeat; irritability; leg cramps; nervousness; pounding in the chest; seizures; shortness of breath; tremors; weight gain or weight loss.

L-Methylfolate/B12/B6/B2

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using L-Methylfolate/B12/B6/B2:

Drowsiness; feeling of swelling of the entire body; mild diarrhea; numbness or tingling.

Seek medical attention right away if any of these SEVERE side effects occur when using L-Methylfolate/B12/B6/B2:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

Levo-Dromoran

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levo-Dromoran:

Altered mood and thoughts; constipation; dizziness; drowsiness; flushing; nausea; reaction or pain at the injection site; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Levo-Dromoran:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); depression; difficulty urinating; fainting; fast, slow, or irregular heartbeat; itching; seizures.

Levorphanol

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Levorphanol:

Altered mood and thoughts; constipation; dizziness; drowsiness; flushing; nausea; reaction or pain at the injection site; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Levorphanol:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); depression; difficulty urinating; fainting; fast, slow, or irregular heartbeat; itching; seizures.

Loperamide

All medicines may cause side effects, but many people have no, or minor, side effects. No COMMON side effects have been reported with Loperamide. Seek medical attention right away if any of these SEVERE side effects occur when using Loperamide:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); constipation; decreased urination; red, swollen, blistered, or peeling skin; stomach bloating, swelling, or pain.

Lufyllin-GG

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lufyllin-GG:

Headache; nausea; upset stomach.

Seek medical attention right away if any of these SEVERE side effects occur when using Lufyllin-GG:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in the urine; bloody vomit; diarrhea; dizziness; excitability; fast breathing; fast/irregular heartbeat; flushing; increased thirst or urination; irritability; muscle twitching; pounding in the chest; restlessness; seizures; stomach pain; trouble sleeping; vomiting.

Loxitane

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Loxitane:

Blurred vision; constipation; dizziness; drowsiness; dry mouth; headache; nausea; stuffy nose; trouble sleeping; vomiting; weight gain or loss.

Seek medical attention right away if any of these SEVERE side effects occur when using Loxitane:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); agitation; altered mental abilities, including lack of response to your surroundings; chills or persistent sore throat; confusion; dark urine; decreased urination; fainting or faintness; fast or irregular heartbeat; hyperactivity; increased saliva production; increased thirst; involuntary, uncontrolled muscle movements; menstrual changes; mental or mood changes; muscle twitching; numbness or tingling of the skin; restlessness; seizures; shortness of breath; severe constipation; slurred speech; staggering or shuffling gait; stiff or rigid muscles; sweating; tremor; unexplained fever; vision changes; yellowing of the eyes or skin.

Loxapine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Loxapine:

Blurred vision; constipation; dizziness; drowsiness; dry mouth; headache; nausea; stuffy nose; trouble sleeping; vomiting; weight gain or loss.

Seek medical attention right away if any of these SEVERE side effects occur when using Loxapine:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); agitation; altered mental abilities, including lack of response to your surroundings; chills or persistent sore throat; confusion; dark urine; decreased urination; fainting or faintness; fast or irregular heartbeat; hyperactivity; increased saliva production; increased thirst; involuntary, uncontrolled muscle movements; menstrual changes; mental or mood changes; muscle twitching; numbness or tingling of the skin; restlessness; seizures; shortness of breath; severe constipation; slurred speech; staggering or shuffling gait; stiff or rigid muscles; sweating; tremor; unexplained fever; vision changes; yellowing of the eyes or skin.

Lyrica

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lyrica:

Blurred vision; changes in sexual function; constipation; dizziness; drowsiness; dry mouth; gas; headache; lightheadedness; stomach pain; trouble concentrating; weight gain.

Seek medical attention right away if any of these SEVERE side effects occur when using Lyrica:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bloating or swelling of the hands, feet, or ankles; changes in vision; confusion; fast or irregular heartbeat; fever; inability to control urination; loss of coordination; mental or mood changes; muscle aches, pain, tenderness, or weakness (especially if this occurs with a fever or general feeling or discomfort); speaking problems; sudden, unexplained weight gain; unusual tiredness or weakness.

Liothyronine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Liothyronine:

Fever; pain or irritation at the injection site; twitching.

Seek medical attention right away if any of these SEVERE side effects occur when using Liothyronine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; fast or irregular heartbeat.

Letrozole

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Letrozole:

Arthritis; back, bone, leg, or arm pain; breast pain; constipation; cough; diarrhea; dizziness; headache; hot flushes; flu-like symptoms; flushing; increased sweating; indigestion; infection; joint or muscle pain; loss of appetite; nausea; night sweats; pain; sleeplessness; stomach pain; tiredness; urinary tract infection; vaginal dryness; vomiting; weakness; weight gain or loss.

Seek medical attention right away if any of these SEVERE side effects occur when using Letrozole:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); calf pain or tenderness; chest pain; confusion; numbness of an arm or leg; one-sided weakness; severe stomach pain; shortness of breath; sudden severe headache, vomiting, dizziness, or fainting; swelling of the ankles or feet; unexplained sore throat or fever; unexplained vaginal bleeding or discharge; vision or speech changes.

Lamictal

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lamictal:

Blurred or double vision; constipation; decreased coordination; diarrhea; dizziness; drowsiness; headache; nausea; painful menstrual periods; runny or stuffy nose; stomach upset or pain; tiredness; trouble sleeping; vomiting; weakness; weight loss.

Seek medical attention right away if any of these SEVERE side effects occur when using Lamictal:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unexplained hoarseness); absent menstrual period; calf pain or tenderness; chest pain; dark urine; difficult or painful urination; fast or irregular heartbeat; fever, chills, or persistent sore throat; new or worsening mental or mood changes (eg, anxiety, depression, restlessness, irritability, panic attacks, behavior changes); new or worsening seizures; pale stools; reddened, blistered, swollen, or peeling skin; severe muscle pain or tenderness; severe or persistent stomach pain; shortness of breath; sores in the mouth or around the eyes; suicidal thoughts or attempts; swelling of the hands, ankles, or feet; swollen lymph glands; tremor; unusual bruising or bleeding; unusual weakness or tiredness; vaginal itching or discharge; vision changes; yellowing of the eyes or skin.

Lamotrigine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Lamotrigine:

Blurred or double vision; constipation; decreased coordination; diarrhea; dizziness; drowsiness; headache; nausea; painful menstrual periods; runny or stuffy nose; stomach upset or pain; tiredness; trouble sleeping; vomiting; weakness; weight loss.

Seek medical attention right away if any of these SEVERE side effects occur when using Lamotrigine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unexplained hoarseness); absent menstrual period; calf pain or tenderness; chest pain; dark urine; difficult or painful urination; fast or irregular heartbeat; fever, chills, or persistent sore throat; new or worsening mental or mood changes (eg, anxiety, depression, restlessness, irritability, panic attacks, behavior changes); new or worsening seizures; pale stools; reddened, blistered, swollen, or peeling skin; severe muscle pain or tenderness; severe or persistent stomach pain; shortness of breath; sores in the mouth or around the eyes; suicidal thoughts or attempts; swelling of the hands, ankles, or feet; swollen lymph glands; tremor; unusual bruising or bleeding; unusual weakness or tiredness; vaginal itching or discharge; vision changes; yellowing of the eyes or skin.

Linezolid

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Linezolid:

Bad taste in mouth; constipation; diarrhea; dizziness; headache; nausea; tongue discoloration; trouble sleeping; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Linezolid:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); agitation; bloody stools; bloody vomit; chills; confusion; exaggerated reflexes; excitation; fast heartbeat; loss of coordination; mental or mood changes; muscle spasms; prolonged or repeated nausea or vomiting; seizures; severe or continuing diarrhea; sore throat or fever; stomach pain/cramps; sweating; swelling of the hands or feet; tingling or numbness of hands or feet; unusual bleeding or bruising; unusual tiredness or weakness; vaginal irritation or unusual discharge; vision changes;