You’ll also need to fill out a medical questionnaire with answers about your medical history, current medications, and lifestyle habits. Stendra avanafil : This is an as-needed medication taken 30 minutes before sex and can last up to six hours. Yes, usually. The most common symptoms of erectile dysfunction include difficulty achieving or maintaining an erection and reduced sexual desire. Popular ED medications found online include: Viagra sildenafil : As the first FDA-approved PDE5 inhibitor for ED, sildenafil is taken 30 minutes to four hours before sexual intercourse to help achieve and maintain an erection. It depends on the platform and insurance provider.AdReviews and Comparisons Of The Best Male Enhancement Products. See Which Products Work. Say Goodbye to Performance Anxiety and Hello to Improved Sexual Stamina!Honest & Unbiased Reviews · Over 20 Years Online · Over Products Tested10K+ visitors in the past month. View all prices. Buy Viagra Online. Bye ED. For ED, Viagra is the first port of call. It’s been used by millions of men for over 20 years, and works by boosting circulation to the penis. . Tips for buying Viagra online Have an accurate diagnosis and prescription: Remember that Viagra and generic sildenafil are not available over the Use a licensed pharmacy to .