Dexlansoprazole (INN, trade names Kapidex, Dexilant) is a proton pump inhibitor that is marketed by Takeda Pharmaceuticals. Chemically, it is an enantiomer of lansoprazole. The compound was launched in the US for use in the treatment and maintenance of patients with erosive oesophagitis and non-erosive gastro-oesophageal reflux disease (GERD or GORD).[1] Dexlansoprazole was approved by the U.S. Food and Drug Administration (FDA) on January 30, 2009.[1]
[edit] Pharmacokinetics
After racemic lansoprazole is applied orally, 80% of the circulating drug is dexlansoprazole. Moreover, both enantiomers have a similar effect on the proton pump.[2] Consequently, the main advantage of Kapidex is not the enantiopure substance, but the pharmaceutical formulation.
Kapidex is based on a dual release technology, with the first quick release producing a plasma peak concentration about one hour after application, and the second retarded release producing another peak about four hours later.[1][3] As of November 2009[update], clinical relevance of this form of release has yet to be shown.
[edit] Naming confusion
Since Kapidex was approved in January 2009, there have been reports of dispensing errors because of confusion with the drugs Casodex (bicalutamide) and Kadian (morphine sulfate), which have very different uses from Kapidex and from each other. On March 4, 2010, the FDA has approved a name change for Kapidex to avoid confusion with the two other medications. Effective in late April 2010, Takeda Pharmaceuticals North America began marketing Kapidex under the new name Dexilant.[4]
[edit] References
[edit] External links
(what is this?) (verify)
