Drug interactions
Chlorzoxazone + Loxapine
Severity: Moderate
Chlorzoxazone and Loxapine: 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
Loxapine is a sedating antipsychotic, and combining it with chlorzoxazone can intensify drowsiness, dizziness and impaired alertness. Falls and psychomotor impairment are the main concerns.
What this interaction means in plain words
Chlorzoxazone and Loxapine 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.
Chlorzoxazone belongs to Musculoskeletal; Loxapine belongs to Central Nervous System.
Why it happens
Additive CNS depressant effects, with loxapine contributing antihistaminic and anti-adrenergic sedation.
What to do
Monitor for oversedation and orthostatic symptoms, particularly after dose changes. Advise against driving until tolerance is established.
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 Chlorzoxazone
Other interactions of Loxapine
- Alfentanil + Loxapine Major
- Alprazolam + Loxapine Major
- Amisulpride + Loxapine Major
- Amoxapine + Loxapine Major
- Apomorphine + Loxapine Major
- Belladonna and opium + Loxapine Major
Frequently asked questions
Can I take Chlorzoxazone with Loxapine?
MediHelp rates the interaction as moderate. Chlorzoxazone and Loxapine 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. Loxapine is a sedating antipsychotic, and combining it with chlorzoxazone can intensify drowsiness, dizziness and impaired alertness. Falls and psychomotor impairment are the main concerns.
How serious is the interaction between Chlorzoxazone and Loxapine?
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 orthostatic symptoms, particularly after dose changes. Advise against driving until tolerance is established.
What other medicines interact with Chlorzoxazone?
MediHelp also lists interactions of Chlorzoxazone with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Chlorzoxazone page.
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