Suhagra 100 mg works by inhibiting the enzyme phosphodiesterase type 5 (PDE5), which plays a role in the breakdown of a molecule called cyclic guanosine monophosphate (cGMP). When PDE5 is blocked, cGMP levels increase, allowing the blood vessels in the penis to relax and expand, which improves blood flow. As a result, men can achieve and maintain an erection when sexually stimulated.

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