Drug interactions
Amlodipine-hydrochlorothiazide-valsartan + Olanzapine / samidorphan
Severity: Moderate
Amlodipine-hydrochlorothiazide-valsartan and Olanzapine / samidorphan: 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
Olanzapine can cause orthostatic hypotension, which may add to the effect of the three antihypertensive agents. This may lead to dizziness, falls or syncope.
What this interaction means in plain words
Amlodipine-hydrochlorothiazide-valsartan and Olanzapine / samidorphan 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 hypotension from olanzapine alpha-adrenergic blockade and antihypertensive actions.
What to do
Monitor blood pressure, including orthostatic readings, particularly at initiation and dose increases. Reduce antihypertensive doses if hypotension develops.
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 Amlodipine-hydrochlorothiazide-valsartan
- Aliskiren + Amlodipine-hydrochlorothiazide-valsartan Contraindicated
- Amlodipine-hydrochlorothiazide-valsartan + Dofetilide Contraindicated
- Amlodipine-hydrochlorothiazide-valsartan + Sparsentan Contraindicated
- Aceclofenac + Amlodipine-hydrochlorothiazide-valsartan Major
- Aldesleukin + Amlodipine-hydrochlorothiazide-valsartan Major
- Amifostine + Amlodipine-hydrochlorothiazide-valsartan Major
Frequently asked questions
Can I take Amlodipine-hydrochlorothiazide-valsartan with Olanzapine / samidorphan?
MediHelp rates the interaction as moderate. Amlodipine-hydrochlorothiazide-valsartan and Olanzapine / samidorphan 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. Olanzapine can cause orthostatic hypotension, which may add to the effect of the three antihypertensive agents. This may lead to dizziness, falls or syncope.
How serious is the interaction between Amlodipine-hydrochlorothiazide-valsartan and Olanzapine / samidorphan?
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 orthostatic readings, particularly at initiation and dose increases. Reduce antihypertensive doses if hypotension develops.
What other medicines interact with Amlodipine-hydrochlorothiazide-valsartan?
MediHelp also lists interactions of Amlodipine-hydrochlorothiazide-valsartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Amlodipine-hydrochlorothiazide-valsartan page.
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