Drug interactions
Amlodipine-hydrochlorothiazide-valsartan + Carbidopa
Severity: Moderate
Amlodipine-hydrochlorothiazide-valsartan and Carbidopa: 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
Carbidopa, usually given with levodopa, can add to blood pressure lowering and cause orthostatic hypotension in patients on antihypertensives. The effect is mostly due to levodopa.
What this interaction means in plain words
Amlodipine-hydrochlorothiazide-valsartan and Carbidopa 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.
Amlodipine-hydrochlorothiazide-valsartan belongs to Cardiovascular; Carbidopa belongs to Central Nervous System.
Why it happens
Levodopa-derived dopamine has additive vasodilatory and sympatholytic effects with antihypertensives.
What to do
Monitor standing and sitting blood pressure when starting or increasing levodopa-carbidopa. Reduce antihypertensive doses 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 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
Other interactions of Carbidopa
Frequently asked questions
Can I take Amlodipine-hydrochlorothiazide-valsartan with Carbidopa?
MediHelp rates the interaction as moderate. Amlodipine-hydrochlorothiazide-valsartan and Carbidopa 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. Carbidopa, usually given with levodopa, can add to blood pressure lowering and cause orthostatic hypotension in patients on antihypertensives. The effect is mostly due to levodopa.
How serious is the interaction between Amlodipine-hydrochlorothiazide-valsartan and Carbidopa?
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 standing and sitting blood pressure when starting or increasing levodopa-carbidopa. Reduce antihypertensive doses if symptomatic hypotension occurs.
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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