Drug interactions
Droperidol + Pentazocine
Severity: Moderate
Droperidol 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
Combining an opioid agonist-antagonist with droperidol produces additive sedation and may deepen respiratory depression and hypotension. Droperidol also carries a QT prolongation risk that matters in perioperative or monitored settings.
What this interaction means in plain words
Droperidol 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 depressant effects from opioid receptor activity and dopamine antagonism with sedative properties.
What to do
Reduce the doses of one or both drugs and monitor sedation level, respiratory rate and blood pressure. Obtain an ECG and correct potassium and magnesium when droperidol is given.
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 Droperidol with Pentazocine?
MediHelp rates the interaction as moderate. Droperidol 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. Combining an opioid agonist-antagonist with droperidol produces additive sedation and may deepen respiratory depression and hypotension. Droperidol also carries a QT prolongation risk that matters in perioperative or monitored settings.
How serious is the interaction between Droperidol 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: Reduce the doses of one or both drugs and monitor sedation level, respiratory rate and blood pressure. Obtain an ECG and correct potassium and magnesium when droperidol is given.
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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