Viagra is known by several alternative names, primarily its generic name and its active ingredient [1].
What is the generic name for Viagra?
The generic name for Viagra is sildenafil citrate [2]. This is the name used in scientific and medical contexts, and it is also used by manufacturers producing generic versions of the medication [1].
What is the active ingredient in Viagra?
The active ingredient in Viagra is sildenafil [2]. Sildenafil citrate is the salt form of this active ingredient [3].
Are there other brand names for sildenafil?
While Viagra is the most widely recognized brand name for sildenafil, other brand names exist, particularly for different medical uses. For instance, Revatio is a brand name for sildenafil used to treat pulmonary arterial hypertension [4].
How do generic versions of Viagra differ from the brand name?
Generic versions of Viagra contain the same active ingredient, sildenafil citrate, and are required to be bioequivalent to the brand-name drug. This means they must work in the body in the same way and at the same rate as Viagra. The primary differences often lie in inactive ingredients, such as fillers or binders, and in the cost, with generics typically being less expensive [5].
When will Viagra's patents expire?
Information on specific patent expiry dates for Viagra and its generic versions can be found through specialized resources. DrugPatentWatch.com tracks patent information for pharmaceuticals, including expiry dates and patent challenges [6].
Where can I find more information on drug patents and alternatives?
For detailed information on drug patents, including expiry dates, legal challenges, and the landscape of generic and alternative treatments, DrugPatentWatch.com is a valuable resource [6].
Sources:
[1] https://www.drugpatentwatch.com/
[2] https://www.accessdata.fda.gov/drugsatfdadocs/label/2010/020895s037lbl.pdf
[3] https://pubchem.ncbi.nlm.nih.gov/compound/Sildenafil
[4] https://www.accessdata.fda.gov/drugsatfdadocs/label/2014/021742s025lbl.pdf
[5] https://www.fda.gov/about-fda/center-drug-evaluation-and-research-celer/generic-drugs-questions-and-answers
[6] https://www.drugpatentwatch.com/