Meperidine should be used with caution in patients taking which type of medication?

Meperidine should be used with caution in patients taking which type of medication?

• A. Monoamine oxidase inhibitors
• B. Beta blockers
• C. Platelet aggregation inhibitors
• D. Statins

Answer: (A)

Meperidine should be used with caution with monoamine oxidase inhibitors because of a dangerous interaction involving serotonin. Meperidine has serotonergic activity, and monoamine oxidase inhibitors raise serotonin levels by blocking its breakdown. Together, they can precipitate serotonin syndrome, a potentially life‑threatening state with agitation, autonomic instability, hyperthermia, rigidity, and neuromuscular changes. There’s also a worry that MAO inhibitors slow the metabolism of meperidine’s neurotoxic metabolite, increasing seizure risk. For these reasons, this combination is avoided or used only with great caution, and a non-serotonergic analgesic is typically preferred. Other drug classes listed do not carry this same high-risk serotonergic interaction with meperidine.

Meperidine should be used with caution with monoamine oxidase inhibitors because of a dangerous interaction involving serotonin. Meperidine has serotonergic activity, and monoamine oxidase inhibitors raise serotonin levels by blocking its breakdown. Together, they can precipitate serotonin syndrome, a potentially life‑threatening state with agitation, autonomic instability, hyperthermia, rigidity, and neuromuscular changes. There’s also a worry that MAO inhibitors slow the metabolism of meperidine’s neurotoxic metabolite, increasing seizure risk. For these reasons, this combination is avoided or used only with great caution, and a non-serotonergic analgesic is typically preferred. Other drug classes listed do not carry this same high-risk serotonergic interaction with meperidine.