They have the same benefits and risks as their brand-name counterparts. Those with pre-existing conditions should always consult a healthcare provider before taking new medications or supplements. Finding an online ED provider can feel overwhelming. Generic vs. Follow-up support: Make sure you can get the help you need if questions or concerns arise after ordering. Cialis tadalafil : This ED medication works with the same principle as Viagra, but lasts up to 36 hours.Caverject and Muse both contain alprostadil. Alprostadil relaxes smooth muscles in the penis to help improve blood flow for an erection. Caverject is an injection administered to the spongy side of the penis. Muse is a suppository that’s inserted into the urethra (opening at tip of the penis). There are many ways to save on Caverject and Muse. Erectile dysfunction (ED) is a condition where you’re unable to reach or continue an erection during sexual intercourse. ED can be caused by a variety of things including aging and chronic medical conditions like diabetes and high blood pressure. There are many ways to treat erectile dysfunction. ED treatment options can include . Trimix (papaverine, phentolamine, alprostadil) is one of several other injectable ED treatments. Papaverine and the other medications included in these compounds are vasodilators. They work by relaxing blood vessels and increasing blood flow to the penis. These medications aren’t commercially made. Instead, they’re .