Meperidine and Rasagiline interaction
Meperidine and Rasagiline: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Meperidine (DEMEROL) label · effective 2026-07-20
Concomitant Use of DEMEROL Injection with Monoamine Oxidase (MAO) Inhibitors Concomitant use of DEMEROL Injection with monoamine oxidase (MAO) inhibitors can result in coma, severe respiratory depression, cyanosis, and hypotension.
Use of DEMEROL Injection with MAO inhibitors within last 14 days is contraindicated [see Contraindications (4) , Warnings and Precautions (5.6) , Drug Interactions (7) ] .
• Concomitant use of DEMEROL Injection with Monoamine oxidase (MAO) inhibitors can result in coma, severe respiratory depression, cyanosis and hypotension.
Use of DEMEROL Injection with MAO inhibitors is contraindicated.
…Precautions (5.2) ] • Acute or severe bronchial asthma in an unmonitored setting or in the absence of resuscitative equipment [see Warnings and Precautions (5.9) ] • Concurrent use of monoamine oxidase inhibitors (MAOIs) or use of MAOIs within the last 14 days [see Warnings and Precautions (5.6) , Drug Interactions (7) ] • Known or suspected gastrointestinal obstruction,…
From the Rasagiline label · effective 2020-06-30
Rasagiline is contraindicated for use with meperidine, tramadol, methadone, propoxyphene, and MAO inhibitors (MAOIs), including other selective MAO-B inhibitors, because of risk of serotonin syndrome [see Warnings and Precautions ( 5.2 )] .
Concomitant use of meperidine, tramadol, methadone, propoxyphene dextromethorphan, St.
Serotonin syndrome has also been reported with concomitant use of rasagiline with meperidine, tramadol, methadone, or propoxyphene.
Meperidine: Risk of serotonin syndrome ( 4 , 7.1 )
Meperidine Serious, sometimes fatal reactions have been precipitated with concomitant use of meperidine (e.g., Demerol and other tradenames) and MAO inhibitors including selective MAO-B inhibitors [see Contraindications ( 4 )] .
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.