Generic Name: chlorcyclizine/phenylephrine (klor-SYE-klih-zeen/FEN-il-EF-rin)
Brand Name: Dallergy
Chlorcyclizine/phenylephrine syrup is used for:
Relieving symptoms of sinus congestion; pressure; runny nose; itching of the nose or throat; itchy, watery eyes; and sneezing due to colds, hay fever, or allergies. It may also be used for other conditions as determined by your doctor.
Chlorcyclizine/phenylephrine syrup is an antihistamine and decongestant combination. The antihistamine works by blocking the action of histamine, which helps reduce symptoms such as watery eyes and sneezing. The decongestant promotes sinus and nasal drainage, which relieves congestion and pressure.
Do NOT use chlorcyclizine/phenylephrine syrup if:
- you are allergic to any ingredient in chlorcyclizine/phenylephrine syrup
- you have severe or uncontrolled high blood pressure, severe heart blood vessel disease, rapid heartbeat, or severe heart problems
- you are unable to urinate or are having an asthma attack
- you take droxidopa or sodium oxybate (GHB), or you have taken furazolidone or a monoamine oxidase inhibitor (MAOI) (eg, phenelzine) within the last 14 days
Contact your doctor or health care provider right away if any of these apply to you.
Before using chlorcyclizine/phenylephrine syrup:
Some medical conditions may interact with chlorcyclizine/phenylephrine syrup. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, plan to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have a history of adrenal gland problems (eg, adrenal gland tumor); heart problems (eg, cor pulmonale; fast, slow, or irregular heartbeat; heart disease); high blood pressure; diabetes; blood vessel problems; stroke; glaucoma or increased pressure in the eye; seizures; thyroid problems; or trouble sleeping
- if you have a history of asthma, chronic obstructive pulmonary disease (COPD), or other lung or breathing problems (eg, chronic bronchitis, emphysema); chronic cough; or sleep apnea
- if you have a blockage of your bladder, stomach, or bowels; ulcers; an enlarged prostate or other prostate problems; or trouble urinating
- if you are taking medicine for high blood pressure
Tell your health care provider if you are taking any other medicines, especially any of the following:
- Digoxin or droxidopa because the risk of irregular heartbeat or heart attack may be increased
- Beta-blockers (eg, propranolol), catechol-O-methyltransferase (COMT) inhibitors (eg, tolcapone), furazolidone, linezolid, MAOIs (eg, phenelzine), sodium oxybate (GHB), or tricyclic antidepressants (eg, amitriptyline) because they may increase the risk of chlorcyclizine/phenylephrine syrup's side effects
- Bromocriptine or hydantoins (eg, phenytoin) because the risk of their side effects may be increased by chlorcyclizine/phenylephrine syrup
- Guanadrel, guanethidine, mecamylamine, methyldopa, or reserpine because their effectiveness may be decreased by chlorcyclizine/phenylephrine syrup
This may not be a complete list of all interactions that may occur. Ask your health care provider if chlorcyclizine/phenylephrine syrup may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
How to use chlorcyclizine/phenylephrine syrup:
Use chlorcyclizine/phenylephrine syrup as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Chlorcyclizine/phenylephrine syrup may be taken with or without food. If stomach upset occurs, take with food to reduce stomach irritation.
- Use a measuring device marked for medicine dosing. Ask your pharmacist for help if you are unsure of how to measure your dose.
- If you miss a dose of chlorcyclizine/phenylephrine syrup and you are taking it regularly, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
Ask your health care provider any questions you may have about how to use chlorcyclizine/phenylephrine syrup.
Important safety information:
- Chlorcyclizine/phenylephrine syrup may cause dizziness, drowsiness, or blurred vision. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to chlorcyclizine/phenylephrine syrup. Using chlorcyclizine/phenylephrine syrup alone, with certain other medicines, or with alcohol may lessen your ability to drive or perform other potentially dangerous tasks.
- Do not drink alcohol while you are using chlorcyclizine/phenylephrine syrup.
- Check with your doctor before you use medicines that may cause drowsiness (eg, sleep aids, muscle relaxers) while you are using chlorcyclizine/phenylephrine syrup; it may add to their effects. Ask your pharmacist if you have questions about which medicines may cause drowsiness.
- Do not take diet or appetite control medicines while you are taking chlorcyclizine/phenylephrine syrup without checking with your doctor.
- Before you start any new medicine, check the label to see if it has a decongestant or an antihistamine in it too. If it does or if you are not sure, check with your doctor or pharmacist.
- Do NOT exceed the recommended dose or take chlorcyclizine/phenylephrine syrup for longer than prescribed without checking with your doctor.
- If your symptoms do not get better within 7 days; if they get worse; if they occur along with a fever; or if new symptoms occur, check with your doctor.
- Chlorcyclizine/phenylephrine syrup may cause increased sensitivity to the sun. Avoid exposure to the sun, sunlamps, or tanning booths until you know how you react to chlorcyclizine/phenylephrine syrup. Use a sunscreen or protective clothing if you must be outside for a prolonged period.
- Chlorcyclizine/phenylephrine syrup may interfere with skin allergy tests. If you are scheduled for allergy skin testing, talk to your doctor. You may need to stop taking chlorcyclizine/phenylephrine syrup for a few days before the tests.
- Tell your doctor or dentist that you take chlorcyclizine/phenylephrine syrup before you receive any medical or dental care, emergency care, or surgery.
- Use chlorcyclizine/phenylephrine syrup with caution in the ELDERLY because they may be more sensitive to its effects, especially confusion, dizziness, drowsiness, dry mouth, excitability, low blood pressure, and trouble urinating.
- Caution is advised when using chlorcyclizine/phenylephrine syrup in CHILDREN because they may be more sensitive to its effects, especially excitability.
- Chlorcyclizine/phenylephrine syrup should not be used in CHILDREN younger than 2 years old without first checking with the child's doctor; safety and effectiveness in these children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using chlorcyclizine/phenylephrine syrup while you are pregnant. Chlorcyclizine/phenylephrine syrup may be found in breast milk. Do not breast-feed while taking chlorcyclizine/phenylephrine syrup.
Possible side effects of chlorcyclizine/phenylephrine syrup:
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:
Seek medical attention right away if any of these SEVERE side effects occur:
Anxiety; constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability; headache; loss of appetite; nausea; trouble sleeping; upset stomach; vomiting; weakness.
Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); confusion; difficulty urinating or inability to urinate; fast or irregular heartbeat; fever, chills, or persistent sore throat; hallucinations; mental or mood changes (eg, nervousness); persistent trouble sleeping; restlessness; seizures; severe or persistent dizziness, drowsiness, light-headedness, or headache; tremor; vision changes (eg, blurred vision).
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.
If OVERDOSE is suspected:
If OVERDOSE is suspected: Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately. Symptoms may include blurred vision; confusion; hallucinations; ringing in the ears; seizures; severe dizziness, light-headedness, or headache; severe drowsiness; unusually fast, slow, or irregular breathing; unusually fast, slow, or irregular heartbeat; vomiting.Proper storage of chlorcyclizine/phenylephrine syrup:
Store chlorcyclizine/phenylephrine syrup at room temperature, between 59 and 86 degrees F (15 and 30 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep chlorcyclizine/phenylephrine syrup out of the reach of children and away from pets.
- If you have any questions about chlorcyclizine/phenylephrine syrup, please talk with your doctor, pharmacist, or other health care provider.
- Chlorcyclizine/phenylephrine syrup is to be used only by the patient for whom it is prescribed. Do not share it with other people.
- If your symptoms do not improve or if they become worse, check with your doctor.
- Check with your pharmacist about how to dispose of unused medicine.
This information should not be used to decide whether or not to take chlorcyclizine/phenylephrine syrup or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about chlorcyclizine/phenylephrine syrup. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to chlorcyclizine/phenylephrine syrup. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using chlorcyclizine/phenylephrine syrup.
Disclaimer: This information should not be used to decide whether or not to take this medicine or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using this medicine.