Avanafil is primarily used in the treatment of erectile dysfunction (ED) in men. It works by increasing blood flow to the penis during sexual stimulation, helping to achieve and maintain an erection. This medication is known for its rapid onset of action, often taking effect within 15 to 30 minutes, and its effects may last up to 6 hours, making it a preferred choice for some patients. It is typically taken on an as-needed basis, about 30 minutes before sexual activity. Avanafil is also noted for its relatively low incidence of side effects compared to other ED medications, such as headaches, flushing, or nasal congestion. It is important to follow the prescribed dosage and consult a healthcare provider to ensure safe and effective use, especially for individuals with underlying health conditions or those taking other medications.