Avana 100 mg is a prescription erectile dysfunction medicine, so in the USA the safest place to buy it is through a licensed pharmacy with a valid prescription. Options include: A local retail pharmacy in the USA after your doctor sends the prescription. A verified online U.S. pharmacy that requires prescription verification. Your health plan’s mail-order pharmacy, if covered. Be careful with sites that advertise Avana 100 mg shipping or unusually low prices, because those are often not U.S.-licensed sellers and may involve import or quality risks. Walgreens lists avanafil as a prescription ED medicine, which supports that it should be obtained through legitimate pharmacy channels in the U.S.. A good rule is to use a pharmacy that: Requires a prescription. Shows a U.S. address and pharmacist contact. Is licensed in your state. Is verified by your doctor or insurer.