Drug interactions
Clozapine + Moxonidine
Severity: Moderate
Clozapine 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
Moxonidine is a centrally acting antihypertensive that causes sedation and lowers blood pressure. With clozapine, which also causes orthostatic hypotension and sedation, hypotension, dizziness and falls may be more likely.
What this interaction means in plain words
Clozapine 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 additive hypotensive effects.
What to do
Monitor blood pressure including standing measurements and sedation. Adjust the antihypertensive dose if orthostatic symptoms occur.
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 Clozapine
- Clozapine + Deferiprone Contraindicated
- Clozapine + Irinotecan Contraindicated
- Clozapine + Pimozide Contraindicated
- Clozapine + Thioridazine Contraindicated
- Acalabrutinib + Clozapine Major
- Adagrasib + Clozapine Major
Frequently asked questions
Can I take Clozapine with Moxonidine?
MediHelp rates the interaction as moderate. Clozapine 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. Moxonidine is a centrally acting antihypertensive that causes sedation and lowers blood pressure. With clozapine, which also causes orthostatic hypotension and sedation, hypotension, dizziness and falls may be more likely.
How serious is the interaction between Clozapine 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 measurements and sedation. Adjust the antihypertensive dose if orthostatic symptoms occur.
What other medicines interact with Clozapine?
MediHelp also lists interactions of Clozapine with, for example, Deferiprone, Irinotecan, Pimozide. The full list is on the Clozapine page.
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