Read Next
Science & Tech
Viagra
drug
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies.
Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Feedback
Thank you for your feedback
Our editors will review what you’ve submitted and determine whether to revise the article.
External Websites
- Verywell Health - How Viagra Works and Side Effects
- MedicineNet - Sildenafil
- MedlinePlus - Sildenafil
- NHS - Sildenafil (Viagra)
- National Center for Biotechnology Information - PubMed Central - Viagra: Is it a wonder drug?
- Drugs.com - Viagra
- Healthline - Viagra Side Effects and Other Impacts on the Body
- Cleveland Clinic - Sildenafil Tablets (Erectile Dysfunction)
Recent News
Mar. 20, 2024, 5:52 AM ET (DutchNews.nl)
Don't take libido-boosting honey, food safety body warns
Viagra, trade name of the first oral drug for male impotence, introduced by the pharmaceutical company Pfizer, Inc., in 1998. Also known by the chemical name sildenafil citrate, it is one of a category of drugs known as phosphodiesterase-5 inhibitors. See also PDE-5 inhibitor.