Viagra, which contains the drug sildenafil, is a medication used to treat erectile dysfunction (ED) in males ages 18 years and older. It works by increasing blood flow to the penis, helping individuals to have and maintain an erection when sexually aroused. Heres how Viagra works to treat ED:
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Viagra belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. It works by inhibiting the action of an enzyme called PDE5, which allows cyclic guanosine monophosphate (cGMP) to keep working for a longer period of time than usual. This action improves blood flow to the penis, aiding in the achievement and maintenance of an erection.
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When taken at least 30 minutes before sexual activity (1 hour before is the most effective), Viagra can help improve blood flow into the penis when sexually aroused, thus aiding in the ability to have and maintain an erection.
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Its important to note that Viagra only works if the individual is sexually aroused, and it does not protect against sexually transmitted diseases.
In summary, Viagra works by increasing blood flow to the penis, helping individuals with ED to achieve and maintain an erection when sexually aroused.
