DuraHist Sustained-Release Tablets
Generic name: chlorpheniramine/pseudoephedrine/methscopolamine (KLOR-fen-IR-a-meen/SOO-doe-e-FED-rin/METH-skoe-POL-a-meen)
Brand name: Examples include Dallergy PSE and Relcof PSE
DuraHist Sustained-Release Tablets are used for:
Relieving congestion, sneezing, runny nose, and itchy, watery eyes due to colds, flu, or hay fever. It may also be used for other conditions as determined by your doctor.
DuraHist Sustained-Release Tablets are an antihistamine, decongestant, and anticholinergic combination. It works by blocking histamine, a substance in the body that causes sneezing, runny nose, and watery eyes. It also relieves nasal congestion by shrinking the nasal mucous membranes, which promotes nasal drainage, and dries the chest by decreasing lung secretions.
Do NOT use DuraHist Sustained-Release Tablets if:
- you are allergic to any ingredient in DuraHist Sustained-Release Tablets
- you are pregnant or breast-feeding
- you take sodium oxybate (GHB) or you have taken furazolidone or a monoamine oxidase inhibitor (MAOI) (eg, phenelzine) within the last 14 days
- you have severe heart blood vessel disease, severe high blood pressure, narrow-angle glaucoma, severe bleeding, severe irritation of the esophagus or other serious problems with the esophagus (eg, esophageal achalasia), peptic ulcer, a blockage of your stomach or bowel, bowel motility problems, severe bowel inflammation (eg, ulcerative colitis), certain muscle problems (eg, myasthenia gravis), or uncontrolled bleeding
- you are unable to urinate or are having an asthma attack
Contact your doctor or health care provider right away if any of these apply to you.
Before using DuraHist Sustained-Release Tablets:
Some medical conditions may interact with DuraHist Sustained-Release Tablets. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning 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 diabetes, an enlarged prostate, bladder or kidney problems, high blood pressure, diarrhea, asthma, nerve problems, heart problems, blood clots, a hiatal hernia, an adrenal gland tumor, glaucoma, breathing problems during sleep, seizures, myasthenia gravis (muscle weakness), or an overactive thyroid
Some MEDICINES MAY INTERACT with DuraHist Sustained-Release Tablets. Tell your health care provider if you are taking any other medicines, especially any of the following:
- Alpha-blockers (eg, guanethidine, methyldopa, prazosin), beta-blockers (eg, atenolol), diuretics (eg, furosemide, hydrochlorothiazide), furazolidone, or MAOIs (eg, phenelzine) because the risk of high or low blood pressure may be increased
- Alkalizers (eg, calcium or magnesium antacids), anticholinergics (eg, atropine, benztropine, dicyclomine), carbonic anhydrase inhibitors (eg, acetazolamide), ergotamine, sodium bicarbonate, or tricyclic antidepressants (eg, amitriptyline) because they may increase the risk of DuraHist Sustained-Release Tablets's side effects
- Bromocriptine, catechol-O-methyltransferase (COMT) inhibitors (eg, entacapone), certain stimulants (eg, doxapram, pseudoephedrine), cocaine, digoxin, droxidopa, potassium chloride, or sodium oxybate (GHB) because the risk of their side effects may be increased by DuraHist Sustained-Release Tablets
- Guanadrel, guanethidine, mecamylamine, methyldopa, or reserpine because their effectiveness may be decreased by DuraHist Sustained-Release Tablets
This may not be a complete list of all interactions that may occur. Ask your health care provider if DuraHist Sustained-Release Tablets 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 DuraHist Sustained-Release Tablets:
Use DuraHist Sustained-Release Tablets as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Take DuraHist Sustained-Release Tablets by mouth with or without food. If stomach upset occurs, take with food to reduce stomach irritation.
- Do not take DuraHist Sustained-Release Tablets at the same time as an antacid, certain medicines for diarrhea (eg, attapulgite, bismuth, kaolin, pectin), or ketoconazole. Take these medicines 2 or 3 hours before or after you take DuraHist Sustained-Release Tablets.
- Swallow DuraHist Sustained-Release Tablets whole. Do not break, crush, or chew before swallowing. Some brands of DuraHist Sustained-Release Tablets may be broken in half before taking. If you have difficulty swallowing the whole tablet, ask your pharmacist if your brand of medicine may be broken in half.
- If you miss a dose of DuraHist Sustained-Release Tablets 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 DuraHist Sustained-Release Tablets.
Important safety information:
- DuraHist Sustained-Release Tablets may cause drowsiness, dizziness, or blurred vision. These effects may be worse if you take it with alcohol or certain medicines. Use DuraHist Sustained-Release Tablets with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
- If your symptoms do not get better within 7 days or if they get worse or you develop a high fever or persistent headache, check with your doctor.
- DuraHist Sustained-Release Tablets may cause dry mouth. To relieve dry mouth, suck on sugarless hard candy or ice chips, chew sugarless gum, drink water, or use a saliva substitute.
- DuraHist Sustained-Release Tablets may make your eyes more sensitive to sunlight. It may help to wear sunglasses.
- DuraHist Sustained-Release Tablets may reduce sweating. Do not become overheated in hot weather or while you are being active; heatstroke may occur.
- Do not take diet or appetite control medicines while you are taking DuraHist Sustained-Release Tablets without checking with your doctor.
- DuraHist Sustained-Release Tablets has pseudoephedrine in it. Before you start any new medicine, check the label to see if it has pseudoephedrine in it too. If it does or if you are not sure, check with your doctor or pharmacist.
- If you have trouble sleeping, ask your doctor or pharmacist about the best time of the day to take DuraHist Sustained-Release Tablets.
- DuraHist Sustained-Release Tablets may interfere with certain lab tests. Be sure your doctor and lab personnel know that you are taking DuraHist Sustained-Release Tablets.
- Tell your doctor or dentist that you take DuraHist Sustained-Release Tablets before you receive any medical or dental care, emergency care, or surgery.
- Diabetes patients - DuraHist Sustained-Release Tablets may affect your blood sugar. Check blood sugar levels closely. Ask your doctor before you change the dose of your diabetes medicine.
- Use DuraHist Sustained-Release Tablets with caution in the ELDERLY; they may be more sensitive to its effects.
- Caution is advised when using DuraHist Sustained-Release Tablets in CHILDREN; they may be more sensitive to its effects.
- PREGNANCY and BREAST-FEEDING: It is not known if DuraHist Sustained-Release Tablets can cause harm to the fetus. If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using DuraHist Sustained-Release Tablets while you are pregnant. DuraHist Sustained-Release Tablets are found in breast milk. Do not breast-feed while taking DuraHist Sustained-Release Tablets.
Possible side effects of DuraHist Sustained-Release Tablets:
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:
Constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.
Severe allergic reactions (rash; hives; itching; 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; mental or mood changes; seizures; severe dizziness, lightheadedness, or headache; tremor; vision changes.
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:
Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately. Symptoms may include deep sleep or loss of consciousness; hot or cool skin; irregular heartbeat; irritability, anxiety, or panic; large pupils; numbness or tingling in the arms or legs; seizures; slowed or shallow breathing.Proper storage of DuraHist Sustained-Release Tablets:
Store DuraHist Sustained-Release Tablets in a tightly closed container 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 DuraHist Sustained-Release Tablets out of the reach of children and away from pets.
- If you have any questions about DuraHist Sustained-Release Tablets, please talk with your doctor, pharmacist, or other health care provider.
- DuraHist Sustained-Release Tablets are 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 DuraHist Sustained-Release Tablets 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 DuraHist Sustained-Release Tablets. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to DuraHist Sustained-Release Tablets. 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 DuraHist Sustained-Release Tablets.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.