Zhewitra is a medication used to treat erectile dysfunction (ED) in men. It contains vardenafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. The mechanism of action of Zhewitra is similar to other PDE5 inhibitors like sildenafil (Viagra) and tadalafil (Cialis).

When a man experiences sexual arousal, certain chemical signals are released in the body that cause the relaxation of the smooth muscles in the walls of the blood vessels in the penis. This relaxation allows increased blood flow into the penis, leading to an erection.

In men with erectile dysfunction, an enzyme called PDE5 breaks down another chemical called cyclic guanosine monophosphate (cGMP). cGMP is responsible for promoting the relaxation of smooth muscles in the penis and increasing blood flow during sexual arousal.

buy Zhewitra works by inhibiting the action of the PDE5 enzyme. By doing so, it helps to prevent the breakdown of cGMP, allowing it to accumulate and enhance its effects on blood vessel relaxation. This results in increased blood flow to the penis, which facilitates the achievement and maintenance of an erection.