Drug interactions
Cigarette smoking + Pentazocine
Severity: Minor
Cigarette smoking and Pentazocine: minor 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
Smokers may clear pentazocine faster than non-smokers, which can lower drug exposure and reduce analgesia. The effect has been described as a reduction in clinical effect at standard doses.
What this interaction means in plain words
Cigarette smoking and Pentazocine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Polycyclic aromatic hydrocarbons in tobacco smoke induce hepatic metabolizing enzymes, probably CYP1A2, increasing pentazocine clearance.
What to do
Assess analgesic response in smokers and titrate the dose to effect. Re-evaluate dosing if the patient stops smoking.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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 Cigarette smoking with Pentazocine?
MediHelp rates the interaction as minor. Cigarette smoking and Pentazocine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Smokers may clear pentazocine faster than non-smokers, which can lower drug exposure and reduce analgesia. The effect has been described as a reduction in clinical effect at standard doses.
How serious is the interaction between Cigarette smoking and Pentazocine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Assess analgesic response in smokers and titrate the dose to effect. Re-evaluate dosing if the patient stops smoking.
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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