Attention: MCSR Contact Information has Changed.
Effective January 23, 2017, the Massachusetts Controlled Substance Registration (MCSR) may be reached at a new location. See new contact info on the right.
Massachusetts Controlled Substances Registration (MCSR) Overview
The Drug Control Program issues the Massachusetts Controlled Substances Registration (MCSR) to health care facilities, manufacturers, distributors, community-based programs and other entities as well as to individual health care providers and researchers. The MCSR provides accountability for the manufacture, distribution, dispensing, possession, prescribing and administering of controlled substances which, in Massachusetts, includes all prescription drugs.