Zenegra 100 mg is a medication that contains sildenafil citrate, which is used to treat erectile dysfunction (ED) in men. It helps improve blood flow to the penis during sexual arousal, allowing a man to achieve and maintain an erection. Zenegra relaxes the smooth muscles in blood vessels, especially in the penis. This increases blood flow, which is essential for an erection. Because it affects blood vessels throughout the body, it can sometimes lower blood pressure, causing side effects such as flushing, dizziness, or headache.
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