Malegra 100 mg is a prescription medication used to treat erectile dysfunction (ED) in men. Its active ingredient is sildenafil citrate, a phosphodiesterase type 5 (PDE-5) inhibitor, which works by enhancing blood flow to the penis, helping men achieve and maintain an erection during physical activity. During physical stimulation, the body releases nitric oxide (NO) in the penile tissue. NO stimulates the production of cyclic GMP (cGMP), which relaxes smooth muscles in the blood vessels of the penis.
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