Tadalista 20 (Tadalafil 20mg) is a generic version of the prescription medication Cialis, which is used to treat erectile dysfunction (ED) in men. It is a phosphodiesterase type 5 (PDE5) inhibitor, which blocks the PDE5 enzyme. PDE5 is an enzyme that breaks down cyclic guanosine monophosphate (cGMP), a chemical messenger that helps to relax muscles and blood vessels.

When PDE5 is blocked, cGMP levels increase, which leads to relaxation of the muscles and blood vessels in the penis. This allows more blood to flow into the penis, making it easier to get and keep an erection.

Tadalista 20 is taken by mouth, typically 30-60 minutes before sexual activity. It can be taken with or without food. The effects of Tadalista 20 can last for up to 36 hours.