guaifenesin/phenylephrine - oral, Endal, Numonyl, Quindal, Sinup (cont.)
PRECAUTIONS: Before taking this medication, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. Also tell your doctor if you are very sensitive to the effects of other sympathomimetics (e.g., pseudoephedrine).Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart problems (e.g., angina, irregular heartbeat), trouble urinating (due to an enlarged prostate), trouble sleeping, cough with large amounts of phlegm, breathing problems (e.g., emphysema, chronic bronchitis, asthma), high blood pressure, overactive thyroid (hyperthyroidism), diabetes, a certain eye problem (narrow-angle glaucoma), seizures.This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.Before having surgery, tell your doctor or dentist that you are taking this medication.Liquid forms of this product may contain sugar and/or alcohol. Caution is advised if you have diabetes, alcohol dependence, or liver disease. Ask your doctor of pharmacist about using this product safely.Caution is advised when using this drug in the elderly because they may be more sensitive to its effects, especially dizziness, lightheadedness, and confusion.Caution is advised when using this product in children because they may be more sensitive to its effects, especially excitation, agitation, and increased blood pressure.During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.This drug may pass into breast milk and could have undesirable effects on a nursing infant. Therefore, breast-feeding is not recommended while using this drug. Consult your doctor before breast-feeding.
DRUG INTERACTIONS: 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: MAO inhibitors (e.g., furazolidone, isocarboxazid, linezolid, moclobemide, phenelzine, procarbazine, rasagiline, selegiline, tranylcypromine).If you are currently using any of these medications listed above, tell your doctor or pharmacist before starting this medication.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.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: tricyclic antidepressants (e.g., amitriptyline), beta blockers (e.g., metoprolol, propranolol), digoxin, guanethidine, methyldopa, reserpine.Guaifenesin and phenylephrine are available in both prescription and nonprescription products. Check the labels of all your medications to make sure you are not taking more than one product containing guaifenesin or phenylephrine.Guaifenesin can affect the results of certain lab tests (e.g., urine levels of certain acids). 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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