Tadalafil acts as an active ingredient in the drug Tadalista. Tadalista drug is mainly used when the male suffers from an erection problem. These types of tablets are used as a solution to tires. Tadalafil acts as the active ingredient in the Tadalista drug. Tadalista tablets are taken sometimes before intercourse, after which the effect lasts for 4-5 hours. It is advisable to consult a doctor before taking Tadalista tablets. Tadalista is also found in different powers.