Drug interactions
Loxapine + Moxonidine
Severity: Moderate
Loxapine and Moxonidine: 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 drugs can cause sedation and lower blood pressure, so together they may produce marked drowsiness and orthostatic hypotension. Falls are a particular concern in older patients.
What this interaction means in plain words
Loxapine and Moxonidine 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 and hypotension from central alpha-2/imidazoline agonism by moxonidine and alpha-1 blockade plus sedation from loxapine.
What to do
Monitor blood pressure including standing readings and sedation, particularly when starting or increasing either drug. Reduce doses if dizziness or excessive drowsiness occurs.
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
Frequently asked questions
Can I take Loxapine with Moxonidine?
MediHelp rates the interaction as moderate. Loxapine and Moxonidine 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 drugs can cause sedation and lower blood pressure, so together they may produce marked drowsiness and orthostatic hypotension. Falls are a particular concern in older patients.
How serious is the interaction between Loxapine and Moxonidine?
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 blood pressure including standing readings and sedation, particularly when starting or increasing either drug. Reduce doses if dizziness or excessive drowsiness occurs.
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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