Medicines that block an enzyme called CYP3A4. Side effects Side effects of oral ED medicines are often mild. It lasts 4 to 5 hours, or longer if you have mild to moderate ED. They’re often the first line of treatment for trouble getting or keeping an erection, called erectile dysfunction ED. In some patients, the use of VIAGRA with alpha-blockers can lead to a drop in blood pressure or to fainting medicines called HIV protease inhibitors, such as ritonavir Norvir , indinavir sulfate Crixivan , saquinavir Fortovase or Invirase , or atazanavir sulfate Reyataz some types of oral antifungal medicines, such as ketoconazole Nizoral and itraconazole Sporanox some types of antibiotics, such as clarithromycin Biaxin , telithromycin Ketek , or erythromycin other medicines that treat high blood pressure other medicines or treatments for ED VIAGRA contains sildenafil, which is the same medicine found in another drug called REVATIO. Patients should always ask their doctors for medical advice about adverse events. This boosts blood flow and helps you get an erection from sexual activity.Oral medicines for ED usually work well and cause few side effects. The four main medicines taken by mouth for erectile dysfunction are: Avanafil (Stendra). Sildenafil . Other options. There are several options to treat erectile dysfunction aside from oral medications like Cialis, including: erectile dysfunction pump, which can be a penis or . CHOOSE BRAND-NAME VIAGRA. The original little blue pill prescribed by doctors for over 20 years. Clinically proven to treat men with erectile dysfunction (ED) Ongoing .
