guaifenesin/theophylline/pseudoephedrine - oral, Broncomar-1 (cont.)
DRUG INTERACTIONS: See also How to Use section.Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.This drug should not be used with the following medications because very serious interactions may occur: febuxostat, MAO inhibitors (isocarboxazid, linezolid, moclobemide, phenelzine, procarbazine, selegiline, rasagiline, tranylcypromine).Avoid taking MAO inhibitors within 2 weeks before, during, and after treatment with this medication. In some cases a serious, possibly fatal drug interaction may occur. If you are currently using any of these medications, tell your doctor or pharmacist before starting this product.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: lithium.Other medications can affect the removal of this medication from your body, which may affect how this medication works. Examples include cimetidine, ciprofloxacin, disulfiram, fluvoxamine, interferon alpha, certain macrolide antibiotics (clarithromycin, erythromycin), mexiletine, nefazodone, St. John's wort, drugs to treat seizures (such as carbamazepine, phenobarbital, phenytoin), tacrine, zileuton, among others.Check the labels on all your medicines (such as cough-and-cold products, diet aids) because they may contain the same or similar ingredients (such as ephedrine, phenylephrine) that could increase the side effects of this medication. Ask your pharmacist about using those products safely.Also report the use of drugs which might increase seizure risk when combined with this medication including bupropion, isoniazid (INH), phenothiazines (such as thioridazine), tramadol, tricyclic antidepressants (such as amitriptyline), among others. Consult your doctor or pharmacist for details.Cigarette smoking decreases blood levels of this medication. Tell your doctor if you smoke or if you have recently stopped smoking.This medication may interfere with certain laboratory tests (such as stress tests, uric acid levels), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this medication.This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Need help identifying pills and medications?
Back to Medications Index