Mixing MAOIs and Opioids
- MAOIs also called
- maoi, nardil, phenelzine, parnate, tranylcypromine, marplan
- Opioids also called
- opiate, opiates, opioid, heroin, dope, smack
Caution
Coadministration of monoamine oxidase inhibitors (MAOIs) with certain opioids has been associated with rare reports of severe and fatal adverse reactions. There appear to be two types of interaction, an excitatory and a depressive one. Symptoms of the excitatory reaction may include agitation, headache, diaphoresis, hyperpyrexia, flushing, shivering, myoclonus, rigidity, tremor, diarrhea, hypertension, tachycardia, seizures, and coma. Death has occurred in some cases.
The risk here is to the body — breathing, heart, temperature or organs. Set limits before you start, because this kind of harm does not announce itself in time to react.
Can you mix MAOIs and Opioids?
Carries risk that is worth understanding before combining. Reduce doses and do not use alone.
- Opioids
- Full agonists — heroin, oxycodone, morphine
TripSit drug combination chart, retrieved 2026-08-20. View the dataset.
Checking more than two?
Combinations of three or more carry risks that no pair-by-pair chart can show. The checker rates every pair at once and flags the whole-mix ones on top.
Open this in the checkerRelated combinations
All combinations →Rated caution. Educational information only, not medical advice. Absence of a documented interaction is not evidence of safety.