Malegra 120 mg works by blocking the enzyme phosphodiesterase type 5 (PDE5). This increases levels of cGMP, a chemical that relaxes smooth muscles in blood vessels. As blood flow improves in the penile tissue during sexual arousal, it becomes easier to achieve and maintain an erection. It does not increase sexual desire and will not cause an erection without stimulation. The medication usually begins working within 30–60 minutes after intake. Its effects generally last for about 4–6 hours, although this can vary depending on factors such as age, metabolism, diet, alcohol use, and overall health.
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