Drug interactions
Nabilone + Pentazocine
Severity: Major
Nabilone 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
Pentazocine is a sedating opioid and may also cause psychotomimetic effects, and nabilone adds CNS depression and mood effects. The combination can increase drowsiness, confusion and potentially respiratory depression.
What this interaction means in plain words
Nabilone 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.
Nabilone belongs to Gastrointestinal Tract; Pentazocine belongs to Musculoskeletal.
Why it happens
Additive CNS and respiratory depressant effects.
What to do
Use reduced starting doses and monitor sedation, respiratory rate and mental status. Consider alternative analgesics if confusion or hallucinations occur.
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 Nabilone
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 Nabilone with Pentazocine?
MediHelp rates the interaction as major. Nabilone 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. Pentazocine is a sedating opioid and may also cause psychotomimetic effects, and nabilone adds CNS depression and mood effects. The combination can increase drowsiness, confusion and potentially respiratory depression.
How serious is the interaction between Nabilone 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 reduced starting doses and monitor sedation, respiratory rate and mental status. Consider alternative analgesics if confusion or hallucinations occur.
What other medicines interact with Nabilone?
MediHelp also lists interactions of Nabilone with, for example, Alfentanil, Amobarbital, Belladonna and opium. The full list is on the Nabilone page.
Full monographs, dosing and an interaction checker in the MediHelp app
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