Avana 200 mg, also known as Avanafil, is primarily used to treat erectile dysfunction (ED) in men. Its primary mechanism of action involves improving blood flow to the penis during sexual stimulation, which helps achieve and maintain an erection. Regarding libido (sexual desire), Avana 200 mg itself does not directly increase libido. It works more on the physiological aspects of achieving an erection rather than affecting sexual desire itself. Libido is influenced by various factors including psychological, hormonal, and emotional factors. If someone experiences a decrease in libido, it's essential to discuss this with a healthcare provider. They can help determine the underlying causes and recommend appropriate treatments or lifestyle changes.