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Vidalista 20 contains tadalafil as its active ingredient, which is a medication used primarily for the treatment of erectile dysfunction (ED) in men. Here's how Vidalista 20 works to treat ED:

Mechanism of Action: Tadalafil, the active ingredient in Vidalista 20mg, belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. It works by blocking the enzyme PDE5, which regulates blood flow to certain areas of the body, including the penis.

Increased Blood Flow: During sexual stimulation, nitric oxide is released in the erectile tissue of the penis. Nitric oxide stimulates an enzyme that produces cyclic guanosine monophosphate (cGMP). This cGMP is responsible for relaxing the smooth muscles of the penile blood vessels, allowing them to dilate and increase blood flow to the penis.

Enhanced Erection: By inhibiting PDE5, tadalafil helps to prolong the action of cGMP, thereby maintaining erection hardness and duration sufficient for sexual activity. This mechanism allows men with ED to achieve and sustain erections when sexually aroused.

Administration: Vidalista 20 should be taken orally with a full glass of water. It can be taken with or without food, although consuming large meals or meals high in fat may delay its onset of action.

Effectiveness: It is important to note that tadalafil, including Vidalista 20, works only in the presence of sexual stimulation. It does not cause spontaneous erections but enhances the natural process of erection in response to sexual arousal.