Vidalista 20 is a phosphodiesterase 5 (PDE5) inhibitor drug. Tadalafil, the main ingredient of the drug, is highly effective in treating erectile dysfunction. Vidalista 20mg directly regulates the PDE5 enzyme in the p*nis and helps you get an erection. The medicine does not treat s*xually transmitted infections (STIs) and it is always a good idea to use a condom before having s*x.