Pfizer has acquired NextWave Pharmaceuticals, a privately held specialty pharmaceutical company focused on the development and commercialization of products for the treatment of attention deficit hyperactivity disorder (ADHD).
 
Pfizer now has exclusive North American commercialization rights to Quillivant XR (methylphenidate hydrochloride) for extended-release oral suspension, the first once-daily liquid medication approved in the U.S. to treat ADHD. Quillivant XR was approved by the FDA in September and is expected to be available in January 2013. Financial terms of the acquisitions were not disclosed