Common side effects include headache, facial flushing, indigestion, and dizziness. Most erectile dysfunction medications belong to the drug class known as PDE5 inhibitors , which help relax the muscles and increase blood flow to allow for a full erection. Most companies have an FAQ or shipping policy page you can reference to learn whether discreet packaging is available. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy NAION. Taking generic ED medications is an effective way to save money without sacrificing quality. It may be difficult to remain firm despite wanting to have sex. It’s available in 50 mg, mg, and mg tablets.The average retail price of the most common prescription of sildenafil could cost a couple hundred dollars, but you might be able to get that same prescription for as little as $11 . According to price-comparison site test1.ru, generic Revatio will cost you as little as $ per pill, depending on where you fill your prescription. That’s compared with . Generic sildenafil is covered by most Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower. Get sildenafil for as low as $, which is 99% .