Suboxone is listed under which MRB category?

• A. MRB II
• B. MRB IIII
• C. MRB V
• D. MRB III

Answer: (D)

The important idea here is how MRB categories mirror the level of regulatory risk and required controls for medications with abuse potential. Suboxone contains buprenorphine, a Schedule III controlled substance, which means it has legitimate medical uses but also notable potential for misuse and diversion. That combination calls for enhanced oversight, inventory controls, and documentation, without placing it in the most restrictive tier reserved for the highest-risk substances. Therefore, MRB III represents the appropriate middle-high level of risk and control for Suboxone. The other options either would understate the required controls or include an entry that doesn’t align with standard MRB classifications.