These small differences affect the way each medication works, such as how quickly it takes effect and wears off, and the possible side effects. Product catalogue. Accessed January 8, You can take it in a small dose daily or in a larger dose as needed. J Pharm Pract. Avanafil Stendra.The Savings Offer and Program expire on 12/31/ For further information, call , visit test1.ru, or write: Viatris Inc., P.O. Box , Mission, KS . Still, if your doctor says it’s okay for you to use and you end up paying out-of-pocket, you can still get the generic for a lot less than Viagra. According to price-comparison site . If you live in another country, check to see if pharmacy association or regulation agencies offer services like these. Make sure you get the right prescription and dose. When you .