Vidalista 20 Mg is a drug used to treat erectile dysfunction and is the generic form of Cialis. It is manufactured by Centurion Laboratories in India. The main active ingredient in Vidalista 20 Mg is Tadalafil, which is a PDE5 inhibitor. Tadalafil works by relaxing the blood vessels in the penis, which allows more blood to flow into the penis during sexual stimulation. This results in a harder and longer-lasting erection. Vidalista 20 Mg is available in tablet form and should be taken orally with water. It should be taken at least 30 minutes before sexual activity. The effects of Vidalista 20 Mg can last up to 36 hours.