Many people have no side effects or only mild ones. Read more on male sexual health on the Sexual Health Australia site. This site is intended only for U. What special precautions should I follow? Brand names Why is this medication prescribed? Flibanserin is not approved in Australia. This can happen if you are sick with fever, diarrhea, or vomiting; sweat a lot; or do not drink enough liquids.Rarely reported side effects include: an erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, get medical help right away. If it is not treated right away, priapism can permanently damage your penis. sudden vision loss in one or both eyes. 1 day ago · Cost: Branded Viagra is available starting at $ per dose. Generic Viagra is also available through Hims starting at $4 per dose. Product details Usage: take as needed. According to price-comparison site , generic Revatio will cost you as little as $ per pill, depending on where you fill your prescription. That’s compared with .