In some cases, online ED providers accept health insurance. If approved, the provider will issue a prescription. It’s best to check your chosen provider’s site for more information. If it is not treated right away, priapism can permanently damage your penis sudden vision loss in one or both eyes. You should also call your insurance company to see if they cover erectile dysfunction medications. If you are experiencing any of these or develop a painful erection that lasts more than 4 hours, please get medical attention right away. The four main medicines taken by mouth for erectile dysfunction are: Avanafil Stendra.Online pharmacies allow you to fill prescription medications from the comfort of your home using a pharmacy site or an app rather than having to fill them in person. An online . Lemonaid can prescribe sildenafil (generic Viagra), tadalafil (generic Cialis), and vardenafil (generic Levitra). You can get a prescription online following a quick and easy visit with a member of our clinical team. Then the Lemonaid pharmacy, licensed in all 50 states, will ship your meds directly to your door in discreet packaging. phone Need help? Pick the price that’s right for you Get a free coupon or join GoodRx to save more. Local pharmacy prices Choose a pharmacy to get a coupon location_on .