Drug interactions
Cocaine + Pentazocine
Severity: Moderate
Cocaine 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
Cocaine inhibits monoamine reuptake, including serotonin, and pentazocine may add serotonergic effects. Combined use could theoretically raise the risk of serotonin toxicity, along with cardiovascular stimulation. Clinical evidence is limited.
What this interaction means in plain words
Cocaine 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.
Cocaine belongs to Central Nervous System; Pentazocine belongs to Musculoskeletal.
Why it happens
Possible additive serotonergic effects from cocaine reuptake inhibition and pentazocine; the mechanism is not well established.
What to do
Monitor for agitation, tremor, hyperthermia and tachycardia, particularly after systemic or illicit cocaine exposure. Treat serotonin toxicity symptoms promptly if they occur.
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
Other interactions of Cocaine
- Cocaine + Isocarboxazid Contraindicated
- Cocaine + Phenelzine Contraindicated
- Cocaine + Procarbazine Contraindicated
- Amitriptyline + Cocaine Major
- Bisoprolol + Cocaine Major
- Citalopram + Cocaine Major
Frequently asked questions
Can I take Cocaine with Pentazocine?
MediHelp rates the interaction as moderate. Cocaine 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. Cocaine inhibits monoamine reuptake, including serotonin, and pentazocine may add serotonergic effects. Combined use could theoretically raise the risk of serotonin toxicity, along with cardiovascular stimulation. Clinical evidence is limited.
How serious is the interaction between Cocaine 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: Monitor for agitation, tremor, hyperthermia and tachycardia, particularly after systemic or illicit cocaine exposure. Treat serotonin toxicity symptoms promptly if they occur.
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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