Viagra Online - Drug Interactions

Do not take Viagra if you are taking the following medications: nitroglycerin-type drugs for the heart or chest pain such as amyl nitrite, isosorbide dinitrate, isosorbide mononitrate, nitroglycerin, even if these are only taken occasionally.

Viagra may also interact with the following medications: bosentan, certain drugs used for seizures such as carbamazepine, phenytoin, and phenobarbital, certain drugs used for fungal or yeast infections, such as fluconazole, ketoconazole, and voriconazole, certain drugs for the treatment of HIV infection or AIDS, certain drugs for treating benign prostatic hypertrophy (BPH), cimetidine, cisapride, clarithromycin, diltiazem, erythromycin, grapefruit juice, mibefradil, nitroprusside, rifabutin, rifampin, quinidine, osome drugs for treating depression, anxiety or other mood problems (examples: fluoxetine, fluvoxamine, nefazodone), verapamil.

On the questionaire needed to buy Viagra online, inform of all medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also inform if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.