Drug interactions
Maprotiline + Pentazocine
Severity: Major
Maprotiline and Pentazocine: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
The pair can increase sedation and respiratory depression, and the antidepressant may add serotonergic burden. Maprotiline lowers the seizure threshold, which matters because pentazocine has also been linked to seizures.
What this interaction means in plain words
Maprotiline and Pentazocine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Maprotiline belongs to Central Nervous System; Pentazocine belongs to Musculoskeletal.
Why it happens
Additive CNS depression, possible serotonergic effects and additive lowering of the seizure threshold.
What to do
Use the lowest effective doses and monitor for sedation, seizures and signs of serotonin syndrome. Consider a different analgesic in patients with seizure risk.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Pentazocine
- Calcium / magnesium / potassium / sodium oxybates + Pentazocine Contraindicated
- Olanzapine / samidorphan + Pentazocine Contraindicated
- Pentazocine + Phenelzine Contraindicated
- Pentazocine + Tranylcypromine Contraindicated
- Alfentanil + Pentazocine Major
- Alprazolam + Pentazocine Major
Other interactions of Maprotiline
- Arsenic trioxide + Maprotiline Contraindicated
- Disopyramide + Maprotiline Contraindicated
- Dofetilide + Maprotiline Contraindicated
- Ibutilide + Maprotiline Contraindicated
- Isocarboxazid + Maprotiline Contraindicated
- Maprotiline + Methylene blue Contraindicated
Frequently asked questions
Can I take Maprotiline with Pentazocine?
MediHelp rates the interaction as major. Maprotiline and Pentazocine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. The pair can increase sedation and respiratory depression, and the antidepressant may add serotonergic burden. Maprotiline lowers the seizure threshold, which matters because pentazocine has also been linked to seizures.
How serious is the interaction between Maprotiline and Pentazocine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor for sedation, seizures and signs of serotonin syndrome. Consider a different analgesic in patients with seizure risk.
What other medicines interact with Pentazocine?
MediHelp also lists interactions of Pentazocine with, for example, Calcium / magnesium / potassium / sodium oxybates, Olanzapine / samidorphan, Phenelzine. The full list is on the Pentazocine page.
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