Amneal Pharmaceuticals has launched a generic rival to Purdue’s Butrans (buprenorphine) transdermal system in five strengths in the US, following abbreviated new drug application approval from the US Food and Drug Administration for the product in 5μg/hr, 7.5μg/hr, 10μg/hr, 15μg/hr and 20μg/hr versions.
The company has also been granted competitive generic therapy designation and 180 days of exclusivity for the 7.5μg/hr presentation of...



