Sildenafil, the active component in Kamagra, works by inhibiting the enzyme phosphodiesterase type 5 (PDE5). This enzyme is responsible for breaking down cGMP (cyclic guanosine monophosphate), a substance that helps relax blood vessels in the penis. By preventing the breakdown of cGMP, Kamagra enhances its effects, leading to improved blood flow and facilitating the achievement of an erection when sexual stimulation occurs.

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