Tadalista 40 is a medication used to treat erectile dysfunction (ED) in men. It contains the active ingredient Tadalafil, which belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Tadalista 40mg contains Tadalafil, which helps increase blood flow to the penis during sexual stimulation. This improved blood flow helps men achieve and maintain an erection. Tadalafil generally starts working within 30 minutes to 1 hour after ingestion. Its effects can last up to 36 hours, earning it the nickname "the weekend pill." This prolonged duration of action allows for more spontaneity in sexual activity compared to other ED medications.