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guaifenesin/pseudoephedrine - oral, Duratuss, Maxifed, Venbid, Zep (cont.)

PRECAUTIONS: Before taking this medication, tell your doctor or pharmacist if you are allergic to pseudoephedrine or guaifenesin; or if you have any other allergies. Also tell your doctor if you have had bad reactions to similar drugs (sympathomimetics such as ephedrine, phenylephrine).This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: severe high blood pressure, heart disease (e.g., severe coronary artery disease, angina, heart failure, heart attack), certain types of fast heart rhythm problems (e.g., atrial fibrillation/flutter, paroxysmal supraventricular tachycardia-PSVT), a certain slow heart rhythm problem (sinus bradycardia), a certain eye problem (closed-angle glaucoma), difficulty urinating (e.g., due to enlarged prostate).Before using this medication, tell your doctor or pharmacist your medical history, especially of: stroke, high blood pressure, smoking, long-term breathing problems (e.g., asthma, chronic bronchitis, emphysema), cough with large amounts of phlegm, mental/mood disorders (e.g., anxiety, bipolar disorder, mania), epilepsy/seizure problems, certain blood vessel problems (e.g., Raynaud's disease, peripheral vascular disease), overactive thyroid (hyperthyroidism), low blood flow to the brain (cerebral insufficiency), diabetes, difficulty sleeping.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.Caution is advised when using this drug in the elderly because they may be more sensitive to its effects, especially dizziness and lightheadedness.Caution is advised when using this product in children because they may be more sensitive to its side 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.The pseudoephedrine in this product passes into breast milk. It is not known whether guaifenesin passes into breast milk. Consult your doctor before breast-feeding.



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