Reviewed by: Daniel Williams, MD<\/p>\n
Q: What is Viagra?<\/b>
\nA: Viagra (sildenafil) is an oral treatment for male impotency or Erectile Dysfunction (ED) that is taken by mouth about 30-45 minutes prior to sexual activity. Viagra allows men of all-ages suffering from ED to regain their sexual confidence and experience firm, long-lasting erections that are easily achieved.<\/p>\n
Q: How does Viagra Work?<\/b>
\nA: Viagra works by disabling the PDE5 enzyme (which controls and regulates the blood flow of the arteries that supply the penis with blood). When this enzyme is disabled, the blood can flow easily in to the penis, allowing men to obtain and sustain a firm erection. The erection will naturally dissipate following sexual intercourse. For more information on how Viagra works, read the short and long answers on eDrugstore.com.<\/p>\n
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Q: How Long Does Viagra Last?<\/b>
\nA: Viagra will last up to 4-6 hours in the system following ingestion. It is recommended that you take it at least 30-60 minutes prior to having sex for the best results. Viagra should only be taken as directed by your physician.<\/p>\n
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Q: What are the Common Side Effects?<\/b>
\nA:<\/p>\n\n
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