Drug interactions
Loxapine inhaled + Nortriptyline
Severity: Moderate
Loxapine inhaled and Nortriptyline: 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
Both agents cause sedation, and loxapine also has anticholinergic and QT-related effects shared by tricyclics. Together they may increase drowsiness, anticholinergic effects and arrhythmia risk. Inhaled loxapine can additionally cause bronchospasm.
What this interaction means in plain words
Loxapine inhaled and Nortriptyline 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, anticholinergic activity and possible additive QT effects.
What to do
Monitor for oversedation and anticholinergic effects after each dose. Consider ECG monitoring if other QT-prolonging risks are present.
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 Nortriptyline
- Disopyramide + Nortriptyline Contraindicated
- Dofetilide + Nortriptyline Contraindicated
- Dronedarone + Nortriptyline Contraindicated
- Ibutilide + Nortriptyline Contraindicated
- Isocarboxazid + Nortriptyline Contraindicated
- Methylene blue + Nortriptyline Contraindicated
Frequently asked questions
Can I take Loxapine inhaled with Nortriptyline?
MediHelp rates the interaction as moderate. Loxapine inhaled and Nortriptyline 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. Both agents cause sedation, and loxapine also has anticholinergic and QT-related effects shared by tricyclics. Together they may increase drowsiness, anticholinergic effects and arrhythmia risk. Inhaled loxapine can additionally cause bronchospasm.
How serious is the interaction between Loxapine inhaled and Nortriptyline?
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 oversedation and anticholinergic effects after each dose. Consider ECG monitoring if other QT-prolonging risks are present.
What other medicines interact with Nortriptyline?
MediHelp also lists interactions of Nortriptyline with, for example, Disopyramide, Dofetilide, Dronedarone. The full list is on the Nortriptyline page.
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