Drug interactions
Loxapine + Meclizine
Severity: Moderate
Loxapine and Meclizine: 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
Meclizine is a sedating antihistamine with anticholinergic activity. With loxapine it may cause increased drowsiness, dizziness and additive anticholinergic effects such as dry mouth, constipation and urinary retention.
What this interaction means in plain words
Loxapine and Meclizine 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 belongs to Central Nervous System; Meclizine belongs to Respiratory.
Why it happens
Additive CNS depression and antimuscarinic effects from H1 and muscarinic receptor blockade.
What to do
Counsel about sedation and avoid driving until response is known. Use the lowest effective meclizine dose and monitor older patients for confusion and anticholinergic effects.
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 Loxapine
- Alfentanil + Loxapine Major
- Alprazolam + Loxapine Major
- Amisulpride + Loxapine Major
- Amoxapine + Loxapine Major
- Apomorphine + Loxapine Major
- Belladonna and opium + Loxapine Major
Other interactions of Meclizine
Frequently asked questions
Can I take Loxapine with Meclizine?
MediHelp rates the interaction as moderate. Loxapine and Meclizine 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. Meclizine is a sedating antihistamine with anticholinergic activity. With loxapine it may cause increased drowsiness, dizziness and additive anticholinergic effects such as dry mouth, constipation and urinary retention.
How serious is the interaction between Loxapine and Meclizine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel about sedation and avoid driving until response is known. Use the lowest effective meclizine dose and monitor older patients for confusion and anticholinergic effects.
What other medicines interact with Loxapine?
MediHelp also lists interactions of Loxapine with, for example, Alfentanil, Alprazolam, Amisulpride. The full list is on the Loxapine page.
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