Tadalista Professional is a well-known medication used to treat male erectile dysfunction. Tadalafil is a generic medicine that is sold under several brand names. Tadalafil, a member of the phosphodiesterase type 5 inhibitor class, is a medication that helps men get and maintain erections while sexually stimulated by increasing blood flow to the penis. By inhibiting PDE5, which relaxes the penile blood vessels and increases blood flow, the medication improves the ability to achieve and maintain an erection. It is often taken 30 to 60 minutes before sexual activity. Common adverse effects of tadalafil include headaches, dizziness, flushing, upset stomach, nasal congestion, and altered eyesight.