guaifenesin/ephedrine - oral liquid, Broncholate (cont.)
DRUG INTERACTIONS: Your healthcare professionals (e.g., doctor or pharmacist) may already be aware of any possible drug interactions and may be monitoring you for it. Do not start, stop or change the dosage of any medicine before checking with them first.This drug should not be used with the following medications because very serious interactions may occur: MAO inhibitors (e.g., furazolidone, isocarboxazid, linezolid, moclobemide, phenelzine, procarbazine, selegiline, tranylcypromine, rasagiline).Avoid taking MAO inhibitors within 2 weeks before, during, and after treatment with guaifenesin/ephedrine. 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 guaifenesin/ephedrine, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: other drugs for asthma (e.g., albuterol, theophylline), decongestants (taken by mouth or sprayed into the nose), products containing caffeine, tricyclic antidepressants (e.g., nortriptyline, amitriptyline), digoxin, inhaled anesthetics (e.g., halothane, isoflurane), mecamylamine.Ephedrine may decrease the effectiveness of some blood pressure medications (e.g., beta blockers, calcium channel blockers, reserpine, guanethidine, methyldopa), alpha blockers (e.g., prazosin, terazosin), oxytocin, atropine, "water pills"/diuretics (e.g., furosemide, hydrochlorothiazide).Ephedrine may also worsen the serious side effects of some medications for migraine headaches (e.g., sumatriptan, naratriptan, zolmitriptan, ergotamine, caffeine). Consult your pharmacist or doctor for more details.Check the labels on all your medicines (e.g., cough-and-cold products, diet aids) because they may contain ingredients that could increase your heart rate or blood pressure (e.g., pseudoephedrine, phenylephrine). Ask your pharmacist about the safe use of those products before using them.Ephedrine and guaifenesin are available in both prescription and nonprescription products. Ephedrine or similar medications (e.g., ephedra, ma huang) may also be present in certain herbal remedies/teas. Check the labels of all your medications and herbal products carefully to make sure you are not taking more than one product containing ephedrine or guaifenesin.The guaifenesin in this product can affect the results of certain lab tests (e.g., uric acid levels, 5-hydroxyindoleacetic acid levels, vanillylmandelic acid levels). Make sure laboratory personnel and all your doctors know you use this drug.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.
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