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VIAGRA is made up of sildenafil, which is similar drugs located in A further drug called REVATIO. REVATIO is utilized to treat a uncommon condition referred to as pulmonary arterial hypertension (PAH).an erection that will not go away (priapism). For those who have an erection that lasts a lot more than 4 hrs, get health care support instantly. If

The following nonprescription or herbal merchandise could interact with sildenafil: cimetidine (Tagamet HB), St. John's wort. You'll want to let your physician and pharmacist know that you will be taking these drugs Before you begin getting sildenafil.There were no reports of syncope among the these clients. For these four subjects, the placebo-sub