Drug interactions
Moxonidine + Olanzapine
Severity: Moderate
Moxonidine 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
Moxonidine is a centrally acting antihypertensive that can cause sedation and low blood pressure. With olanzapine, drowsiness and orthostatic hypotension may be greater, raising the risk of dizziness and falls.
What this interaction means in plain words
Moxonidine 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 sedation and hypotension from central imidazoline and alpha-2 agonism plus olanzapine's alpha-1 blockade and sedative effects.
What to do
Monitor blood pressure, including standing readings, and sedation. Adjust the antihypertensive dose if symptomatic hypotension 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 Olanzapine
Frequently asked questions
Can I take Moxonidine with Olanzapine?
MediHelp rates the interaction as moderate. Moxonidine 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. Moxonidine is a centrally acting antihypertensive that can cause sedation and low blood pressure. With olanzapine, drowsiness and orthostatic hypotension may be greater, raising the risk of dizziness and falls.
How serious is the interaction between Moxonidine 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 blood pressure, including standing readings, and sedation. Adjust the antihypertensive dose if symptomatic hypotension occurs.
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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