If it is not treated right away, priapism can permanently damage your penis sudden vision loss in one or both eyes. Topicals tend to have a lower risk of side effects compared to oral medications, Dr. If you prefer, you may contact the U. There were some reports of headaches and nausea, however. That means eating healthy foods, exercising, getting good sleep, limiting stress, and treating other health conditions that might cause ED, like high blood pressure, heart disease, diabetes, obesity, and low testosterone, Dr.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 . An OTC drug will help patients get treatment more quickly. Dr. Pearlman says it can often take months to get an appointment with a healthcare provider who can . Always speak with your healthcare provider about possible interactions with all prescription drugs, vitamins, herbs and supplements, and over-the-counter drugs .