Drug interactions
Loxapine inhaled + Paroxetine
Severity: Moderate
Loxapine inhaled and Paroxetine: 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 serotonergic antidepressant with an antipsychotic carries a small risk of serotonin syndrome or neuroleptic malignant syndrome. Paroxetine also inhibits CYP2D6, which may modestly raise loxapine exposure.
What this interaction means in plain words
Loxapine inhaled and Paroxetine 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 and dopaminergic effects, with possible CYP2D6 inhibition.
What to do
Monitor for mental status change, hyperthermia, rigidity and autonomic instability. Stop the combination if serotonin toxicity or NMS is suspected.
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 Paroxetine
- Isocarboxazid + Paroxetine Contraindicated
- Methylene blue + Paroxetine Contraindicated
- Paroxetine + Phenelzine Contraindicated
- Paroxetine + Pimozide Contraindicated
- Paroxetine + Procarbazine Contraindicated
- Paroxetine + Selegiline Contraindicated
Frequently asked questions
Can I take Loxapine inhaled with Paroxetine?
MediHelp rates the interaction as moderate. Loxapine inhaled and Paroxetine 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 serotonergic antidepressant with an antipsychotic carries a small risk of serotonin syndrome or neuroleptic malignant syndrome. Paroxetine also inhibits CYP2D6, which may modestly raise loxapine exposure.
How serious is the interaction between Loxapine inhaled and Paroxetine?
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, hyperthermia, rigidity and autonomic instability. Stop the combination if serotonin toxicity or NMS is suspected.
What other medicines interact with Paroxetine?
MediHelp also lists interactions of Paroxetine with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Paroxetine page.
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