The Viagra Prank
- Comedy article journaling the author's online Viagra purchase and the aftereffects of taking it.
- http://www.zug.com/pranks/viagra/

Viagra Fans - Information Exchange
- Discussion forum relating to Viagra, Cialis and Levitra.
- http://health.groups.yahoo.com/group/viagrafans

Viagra Frequently Asked Questions
- A list of questions and answers on Viagra has been developed by CDER's Drug Information Branch.
- http://www.fda.gov/cder/consumerinfo/viagra/viagrafaq.htm

Viagra Drug Interactions
- A partial list of drugs which should not be taken in conjunction with Viagra.
- http://www.usrf.org/breakingnews/viagra_interactions.html

Viagra Consumer Information
- FDA consumer information page about Viagra, the medication used to treat men's impotence.
- http://www.fda.gov/cder/consumerinfo/druginfo/Viagra.htm

Viagra
- Information, including updated labeling, new prescribing information, safety updates, consumer information, and the clinical review of the studies. FDA/Centre for Drug Evaluation and Research.
- http://www.fda.gov/cder/consumerinfo/viagra/default.htm

Sildenafil Citrate
- Information from the RxList.
- http://www.rxlist.com/cgi/generic/viagra.htm

Frequently Asked Questions About Viagra
- Information on how it works, safety and efficacy and side effects. Reviewed by Harvard Medical School.
- http://www.intelihealth.com/IH/ihtIH/EMIHC000/9105/28955/213545.html?d=dmtContent

FDA Viagra Product Information
- FDA consumer source for information about Viagra, the medication used to treat men's impotence
- http://www.fda.gov/cder/consumerinfo/viagra/

FDA Adds More Cautions to Viagra Labelling.
- Abstracted from: FDA Talk Paper
- http://www.usrf.org/breakingnews/bn_981124_fdacautions.html

Safety and Efficacy of Sildenafil in Postmenopausal Women with Sexual Dysfunction
- Abstract of a peer-reviewed study on the effectiveness of Viagra for women.
- http://www.usrf.org/breakingnews/viagra4women.html

American Academy of Family Physicians - Using Viagra
- A look at what this drug is, as well as erectile dysfuction, the side affects and who should not take it.
- http://www.aafp.org/afp/990915ap/990915d.html

Postmarketing Safety of Sildenafil Citrate (Viagra)
- FDA summary of reports of death in users, as received from marketing March - November, 1998.
- http://www.fda.gov/cder/consumerinfo/viagra/safety3.htm