It’s available in 10 mg and 20 mg tablets. Read our full article on the topic: What to do if your ED medication isn’t working. Finding an online ED provider can feel overwhelming. Be sure the one you choose works in your state. The most common symptoms of erectile dysfunction include difficulty achieving or maintaining an erection and reduced sexual desire. When taken at the correct time and paired with sexual stimulation, the erection lasts long enough for successful intercourse.The Savings Offer and Program expire on 12/31/ For further information, call , visit , or write: Viatris Inc., P.O. Box , Mission, KS . Viagra Coupons, Prices, and Savings Card. Generic Names: Sildenafil Citrate. Brand Names: Revatio. Sildenafil is used to treat male sexual function problems (impotence or . Viagra, Cialis, sildenafil, tadalafil: Yes: Lemonaid Best for Cialis: Starting at $2 to $8 per pill: Yes: Sildenafil, tadalafil (as-needed and daily) Yes: Roman Best for .