If you are experiencing a medical emergency please dial 911 immediately
The medicine is injected directly into the penis using a very small needle and syringe. The erection can last for 30 minutes or longer depending on how much medicine is used.
Last Revised: May 14, 2012
Author: Healthwise Staff
Medical Review: E. Gregory Thompson, MD - Internal Medicine & Christopher G. Wood, MD, FACS - Urology, Oncology
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