Malegra 200 mg Pill is a medication used to treat erectile dysfunction (ED) in men. It contains Sildenafil Citrate as its active ingredient. Sildenafil Citrate is a phosphodiesterase type 5 (PDE5) inhibitor. It works by increasing blood flow to the penis during sexual stimulation, which helps men achieve and maintain an erection. The mechanism of action involves inhibiting the enzyme PDE5, which normally breaks down cyclic guanosine monophosphate (cGMP), a substance that relaxes the smooth muscles of the penile blood vessels, allowing increased blood flow into the penis.