Tadagra Prof 20 mg contains the active ingredient tadalafil, which is a phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction (ED) in men. Tadalafil works by increasing blood flow, allowing for improved erectile function. It inhibits the enzyme PDE5, which is responsible for regulating blood flow. By blocking PDE5, tadalafil allows the blood vessels in the to relax and widen, facilitating increased blood flow and the ability to achieve and maintain erections when stimulated. Tadagra Prof 20 mg contains 20 mg of tadalafil per tablet. The appropriate dosage depends on individual factors such as the severity of ED, response to treatment, and any underlying health conditions. It's essential to follow the recommended dosage instructions provided by a healthcare provider.