Vidalista 10 Tadalafil acts as the main ingredient in the drug. Vidalista 10 is taken 1 hour before sex. The effect lasts for 36 hours after taking it. Vidalista 10mg is a popular ED tablet that allows you to enjoy sex better. Vidalista 10 must be used only once a day. Vidalista 10 mg is the only drug used by men.