Ketamine is listed under which MRB category?

Ketamine is listed under which MRB category?

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

Answer: (C)

MRB categories measure how tightly a substance is regulated and how much monitoring it requires in risk and compliance programs. Ketamine has legitimate medical use as an anesthetic, but it is a controlled substance with clear abuse and diversion risks. That combination places it in a mid-range MRB category, where enhanced screening and controls are triggered without placing it in the highest risk tier. Lower-risk categories would understate its regulatory concerns, while the highest tiers would overstate the risk given its medical utility. So MRB III best fits ketamine’s profile.

MRB categories measure how tightly a substance is regulated and how much monitoring it requires in risk and compliance programs. Ketamine has legitimate medical use as an anesthetic, but it is a controlled substance with clear abuse and diversion risks. That combination places it in a mid-range MRB category, where enhanced screening and controls are triggered without placing it in the highest risk tier. Lower-risk categories would understate its regulatory concerns, while the highest tiers would overstate the risk given its medical utility. So MRB III best fits ketamine’s profile.