Tadalista 20 mg contains the active substance tadalafil, which belongs to the group of inhibitors called type 5 (PDE5) phosphodiesterase. By helping to relax the blood vessels in the penis and thus provide blood flow, it significantly improves sexual function. Tadalafil is the active ingredient, the same drug is also used in other such drugs. The most important characteristics of this molecule are a long-lasting effect that can last up to 36 hours, as well as the fact that the intake of food and alcohol does not affect the concentration of the drug in plasma and its effect. buy tadalista 20mg online at a low price from our online pharmacy.