Drug interactions
Amoxapine + Pentazocine
Severity: Moderate
Amoxapine and Pentazocine: moderate 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
Both drugs act on the central nervous system: pentazocine is an opioid analgesic and amoxapine is a sedating antidepressant. Together they can produce additive sedation and, less commonly, serotonin toxicity. Amoxapine also has some seizure-lowering potential, which opioids may compound.
What this interaction means in plain words
Amoxapine and Pentazocine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive CNS depression plus possible additive serotonergic effects from amoxapine reuptake inhibition and pentazocine.
What to do
Use the lowest effective doses and monitor for excess sedation, respiratory depression and signs of serotonin syndrome. Counsel patients against driving and alcohol.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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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
Frequently asked questions
Can I take Amoxapine with Pentazocine?
MediHelp rates the interaction as moderate. Amoxapine and Pentazocine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both drugs act on the central nervous system: pentazocine is an opioid analgesic and amoxapine is a sedating antidepressant. Together they can produce additive sedation and, less commonly, serotonin toxicity. Amoxapine also has some seizure-lowering potential, which opioids may compound.
How serious is the interaction between Amoxapine and Pentazocine?
MediHelp rates it moderate, 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 excess sedation, respiratory depression and signs of serotonin syndrome. Counsel patients against driving and alcohol.
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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