Drug interactions
Loxapine inhaled + Olanzapine
Severity: Moderate
Loxapine inhaled and Olanzapine: 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 block dopamine receptors, so together they may increase the likelihood of extrapyramidal symptoms and neuroleptic malignant syndrome. Sedation may also be additive. Inhaled loxapine can additionally cause bronchospasm.
What this interaction means in plain words
Loxapine inhaled and Olanzapine 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 dopamine D2 antagonism and additive sedative effects from histamine and adrenergic receptor blockade.
What to do
Monitor for rigidity, tremor, akathisia, fever and sedation after the inhaled dose. Avoid repeated dosing if the patient is already heavily sedated.
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 Olanzapine
Frequently asked questions
Can I take Loxapine inhaled with Olanzapine?
MediHelp rates the interaction as moderate. Loxapine inhaled and Olanzapine 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 block dopamine receptors, so together they may increase the likelihood of extrapyramidal symptoms and neuroleptic malignant syndrome. Sedation may also be additive. Inhaled loxapine can additionally cause bronchospasm.
How serious is the interaction between Loxapine inhaled and Olanzapine?
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 rigidity, tremor, akathisia, fever and sedation after the inhaled dose. Avoid repeated dosing if the patient is already heavily sedated.
What other medicines interact with Olanzapine?
MediHelp also lists interactions of Olanzapine with, for example, Amisulpride, Amoxapine, Apomorphine. The full list is on the Olanzapine page.
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