Mechanism of Action of the Impotence Drug, Viagra

Viagra is dispensed as a pill and ingested orally. Approximately 30-60 minutes later the drug is absorbed in the bloodstream. Viagra then functions as an inhibitor to an enzyme called phosphodiesterase type (PDE5) which is found primarily in the penis. By inhibiting PDE5, smooth muscle in the penis remains relaxed for a longer period. This allows for increased blood flow into the cavernous tissue of the penis thereby generating an erection. Viagra is unique in that it increases a natural occurring process, therefore, only through sexual stimulation will an erection occur.

This website in not directly or indirectly associated with Pfizer in any way. Copyright© www.viagra-impotence-forum.co.uk ALL RIGHTS RESERVED Viagra® is a prescription medicine used to treat Impotence. Only a physician should decide if it is appropriate for you to use Viagra or other medications. These pages are only a summary of health related topics. If you have further questions concerning your health or would like more information about Viagra®, consult you personal physician or pharmacist. Please be responsible with your health. Schedule regular appointments with your family physician and/or your urologist so they may address and treat the underlying conditions responsible for your Impotence.