Drug interactions
Milnacipran + Trifluoperazine
Severity: Moderate
Milnacipran 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
Combining a serotonin-norepinephrine reuptake inhibitor with an antipsychotic may rarely lead to serotonin syndrome or neuroleptic malignant syndrome. Both are uncommon but potentially serious.
What this interaction means in plain words
Milnacipran 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 serotonergic activity with dopamine D2 blockade; the pharmacodynamic basis is not fully established.
What to do
Monitor for mental status change, autonomic instability, neuromuscular hyperactivity, hyperthermia and rigidity, especially at initiation or dose increase. Stop the drugs and treat if features appear.
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 Milnacipran
- Isocarboxazid + Milnacipran Contraindicated
- Methylene blue + Milnacipran Contraindicated
- Milnacipran + Phenelzine Contraindicated
- Milnacipran + Procarbazine Contraindicated
- Milnacipran + Rasagiline Contraindicated
- Milnacipran + Safinamide Contraindicated
Frequently asked questions
Can I take Milnacipran with Trifluoperazine?
MediHelp rates the interaction as moderate. Milnacipran 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. Combining a serotonin-norepinephrine reuptake inhibitor with an antipsychotic may rarely lead to serotonin syndrome or neuroleptic malignant syndrome. Both are uncommon but potentially serious.
How serious is the interaction between Milnacipran 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: Monitor for mental status change, autonomic instability, neuromuscular hyperactivity, hyperthermia and rigidity, especially at initiation or dose increase. Stop the drugs and treat if features appear.
What other medicines interact with Milnacipran?
MediHelp also lists interactions of Milnacipran with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Milnacipran page.
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