Vidalista, which contains tadalafil as the active ingredient, is a medication used to treat erectile dysfunction (ED) in men. It belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Here's how Vidalista helps maintain an erection:

PDE5 Inhibition: Like other PDE5 inhibitors, such as sildenafil (Viagra) and vardenafil (Levitra), tadalafil works by inhibiting the action of the phosphodiesterase type 5 enzyme. This enzyme is responsible for breaking down cyclic guanosine monophosphate (cGMP), a chemical messenger that plays a key role in relaxing smooth muscles and increasing blood flow in the penis during sexual stimulation.

Increased Blood Flow: By inhibiting PDE5, tadalafil allows cGMP levels to remain elevated, leading to prolonged relaxation of smooth muscles in the penile blood vessels. This relaxation promotes vasodilation (dilation of blood vessels), which in turn enhances blood flow to the erectile tissue of the penis, facilitating the achievement and maintenance of an erection suitable for sexual activity.

Longer Duration of Action: One of the notable features of tadalafil, the active ingredient in Vidalista, is its longer duration of action compared to other PDE5 inhibitors. While sildenafil and vardenafil typically last for about 4 to 6 hours, tadalafil can remain effective for up to 36 hours in some individuals. This extended duration allows for more spontaneity in sexual activity and may be suitable for men who prefer less frequent dosing.

Response to Sexual Stimulation: It's important to note that Vidalista, like other ED medications, does not cause an erection on its own. Sexual stimulation is still necessary to trigger the release of nitric oxide, which initiates the biochemical processes leading to the production of cGMP and the subsequent erection.