Drug interactions
Hydrochlorothiazide-irbesartan + Levodopa
Severity: Moderate
Hydrochlorothiazide-irbesartan and Levodopa: 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
Levodopa can cause orthostatic hypotension, and this effect may add to the blood pressure lowering of irbesartan and hydrochlorothiazide. Patients may experience dizziness or falls, especially at the start of treatment.
What this interaction means in plain words
Hydrochlorothiazide-irbesartan and Levodopa 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.
Hydrochlorothiazide-irbesartan belongs to Cardiovascular; Levodopa belongs to Central Nervous System.
Why it happens
Additive hypotensive effects from dopaminergic vasodilation and autonomic effects of levodopa combined with antihypertensive action.
What to do
Monitor blood pressure, including standing readings, when starting or adjusting either drug. Reduce 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 Hydrochlorothiazide-irbesartan
- Aliskiren + Hydrochlorothiazide-irbesartan Contraindicated
- Dofetilide + Hydrochlorothiazide-irbesartan Contraindicated
- Hydrochlorothiazide-irbesartan + Sparsentan Contraindicated
- Aldesleukin + Hydrochlorothiazide-irbesartan Major
- Amifostine + Hydrochlorothiazide-irbesartan Major
- Amiloride + Hydrochlorothiazide-irbesartan Major
Other interactions of Levodopa
- Isocarboxazid + Levodopa Contraindicated
- Levodopa + Phenelzine Contraindicated
- Levodopa + Phenelzine (nonselective MAOI) Contraindicated
- Levodopa + Procarbazine Contraindicated
- Levodopa + Tranylcypromine Contraindicated
- Amisulpride + Levodopa Major
Frequently asked questions
Can I take Hydrochlorothiazide-irbesartan with Levodopa?
MediHelp rates the interaction as moderate. Hydrochlorothiazide-irbesartan and Levodopa 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. Levodopa can cause orthostatic hypotension, and this effect may add to the blood pressure lowering of irbesartan and hydrochlorothiazide. Patients may experience dizziness or falls, especially at the start of treatment.
How serious is the interaction between Hydrochlorothiazide-irbesartan and Levodopa?
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, when starting or adjusting either drug. Reduce the antihypertensive dose if symptomatic hypotension occurs.
What other medicines interact with Hydrochlorothiazide-irbesartan?
MediHelp also lists interactions of Hydrochlorothiazide-irbesartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-irbesartan page.
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