Drug interactions
Nalbuphine + Trifluoperazine
Severity: Moderate
Nalbuphine and Trifluoperazine: 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
Concurrent use can intensify sedation, dizziness and hypotension. Respiratory depression may occur, particularly at higher doses.
What this interaction means in plain words
Nalbuphine and Trifluoperazine 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 from opioid receptor agonism and phenothiazine antagonism of dopamine, histamine and adrenergic receptors.
What to do
Begin with a lower nalbuphine dose and titrate carefully. Monitor sedation level, blood pressure and breathing.
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 Nalbuphine
- Alvimopan + Nalbuphine Contraindicated
- Nalbuphine + Olanzapine / samidorphan Contraindicated
- Alprazolam + Nalbuphine Major
- Amobarbital + Nalbuphine Major
- Benzhydrocodone / acetaminophen + Nalbuphine Major
- Brexanolone + Nalbuphine Major
Frequently asked questions
Can I take Nalbuphine with Trifluoperazine?
MediHelp rates the interaction as moderate. Nalbuphine and Trifluoperazine 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. Concurrent use can intensify sedation, dizziness and hypotension. Respiratory depression may occur, particularly at higher doses.
How serious is the interaction between Nalbuphine and Trifluoperazine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Begin with a lower nalbuphine dose and titrate carefully. Monitor sedation level, blood pressure and breathing.
What other medicines interact with Nalbuphine?
MediHelp also lists interactions of Nalbuphine with, for example, Alvimopan, Olanzapine / samidorphan, Alprazolam. The full list is on the Nalbuphine page.
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