Top Avana (Avanafil/Dapoxetine) is a medication used to treat erectile dysfunction. It combines Avanafil (brand name: Stendra) and Dapoxetine. Avanafil (Stendra) has been approved by the FDA for this purpose. Erectile dysfunction, also known as male impotence, refers to the inability to achieve or maintain a penile erection.Avanafil/Dapoxetine is used to treat two common sexual disorders in men: erectile dysfunction (ED) and premature ejaculation (PE). It is a combination medication that combines Avanafil, which helps achieve and maintain an erection, and Dapoxetine, which delays ejaculation.