Collegium Pharmaceutical, Inc., a specialty pharmaceutical company, engages in the development and commercialization of medicines for pain management. The company's portfolio includes Jornay PM, a central nervous system stimulant prescription medicine that contains methylphenidate HCl for the treatment of attention deficit hyperactivity disorder; Belbuca, a buccal film that contains buprenorphine for severe and persistent pain that requires an extended treatment period; Xtampza ER, an abuse-deterrent, extended-release, oral formulation of oxycodone for the management of pain severe enough to require daily; Nucynta ER and Nucynta IR, which are extended-release and immediate-release oral formulations of tapentadol, indicated for the management of acute, severe, and persistent pain; and Sympr…