Vidalista is a medication commonly used to treat erectile dysfunction (ED). The main ingredient in Vidalista is: Tadalafil Tadalafil is a PDE5 inhibitor (phosphodiesterase type 5 inhibitor), the same active ingredient found in Cialis. It works by increasing blood flow to the ***** in response to ***** arousal, helping a man achieve and maintain an erection. How Tadalafil Works: Tadalafil blocks the PDE5 enzyme, which typically breaks down cGMP, a substance that helps relax the smooth muscles of the ***** and increase blood flow. By inhibiting PDE5, tadalafil increases the levels of cGMP, leading to relaxed blood vessels and improved circulation to the ***** when ***** stimulation occurs. Other Ingredients: Besides tadalafil, Vidalista may contain some inactive ingredients (also called excipients) that are used to stabilize the medication, improve its taste, or help with its absorption. These might include: Lactose monohydrate Microcrystalline cellulose Magnesium stearate Silicon dioxide These ingredients typically don't have any therapeutic effects but help the medication work properly and ensure that the tablet holds together and dissolves correctly in the body. Strengths of Vidalista: Vidalista is available in different strengths, most commonly: Vidalista 10 mg Vidalista 20 mg Vidalista 40 mg Vidalista 60 mg The most common dose for erectile dysfunction is 20 mg, but your doctor might adjust this based on your needs.