Cenforce 25 mg is a medication used to treat erectile dysfunction (ED). It contains sildenafil citrate as its active ingredient, which is a phosphodiesterase type 5 (PDE5) inhibitor. Sildenafil works by increasing blood flow to the penis during sexual arousal. It does this by inhibiting the enzyme PDE5, which normally breaks down cyclic GMP—a substance that helps relax blood vessels in the penis and increase blood flow.

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