TERFENADINE-ORAL, Seldane (cont.)
PRECAUTIONS: Tell your doctor your medical history, especially of: liver disease, asthma or other lung disease, glaucoma, an enlarged prostate gland, heart disease, high blood pressure, an overactive thyroid gland, stomach ulcers, urinary tract blockage, kidney disease, drug allergies. This drug should be used only if clearly needed during pregnancy. Because this medication appears in breast milk, consult with your doctor before breast-feeding.
DRUG INTERACTIONS: Before using this drug, tell your doctor of all drugs you may use (both prescription and nonprescription) especially of: erythromycin or drugs related to it (e.g., clarithromycin, troleandomycin), azole antifungals (e.g., ketoconazole, itraconazole), mibefradil, protease inhibitors (e.g., ritonavir, saquinavir), SSRI antidepressants (e.g., fluvoxamine, sertraline), nefazodone, zileuton. Report other drugs which affect the heart rhythm (QTc prolongation), such as: dofetilide, pimozide, quinidine, sotalol, procainamide, sparfloxacin, "water pills" (diuretics such as furosemide or hydrochlorothiazide). Ask your doctor or pharmacist for more details. Do not take terfenadine for several days before undergoing allergy testing because test results can be affected. Do not eat grapefruit or drink grapefruit juice unless your doctor instructs you otherwise. Do not start or stop any medicine without doctor or pharmacist approval.
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