Editing Vardenafil (section)

==History==
Vardenafil was co-marketed by [[Bayer|Bayer Pharmaceuticals]], [[GlaxoSmithKline]], and [[Schering-Plough]] under the brand name Levitra. As of 2005, the co-promotion rights of GSK on Levitra have been returned to Bayer in many markets outside the US. In Italy, Bayer sells vardenafil as Levitra and GSK sells it as Vivanza.  Thus, because of European Union trade rules, [[parallel import]]s might result in Vivanza sold next to Levitra in the EU.

An orally disintegrating form, marketed as Staxyn and Levitra Soft, has been gaining approvals in countries such as the United States<ref name="pharmpro.com 2012">{{cite web | title=New erectile dysfunction treatment Staxyn approved in the U.S. - Pharmaceutical Processing | website=pharmpro.com | date=June 21, 2010 | url=https://www.pharmpro.com/News/Feeds/2010/06/pharmaceutical-companies-bayer-new-erectile-dysfunction-treatment-staxyn-approve | archive-url=https://web.archive.org/web/20120406122727/https://www.pharmpro.com/News/Feeds/2010/06/pharmaceutical-companies-bayer-new-erectile-dysfunction-treatment-staxyn-approve | archive-date=April 6, 2012 | url-status=dead}}</ref> and Canada.<ref>{{cite web|url=http://www.newswire.ca/en/story/832217/staxyn-new-innovation-in-erectile-dysfunction-helps-younger-men-rise-to-the-occasion|title=Staxyn - New Innovation in Erectile Dysfunction Helps Younger Men Rise to the Occasion}}</ref>