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Drug interactions

Hydrochlorothiazide-lisinopril + Levodopa

Severity: Moderate

Hydrochlorothiazide-lisinopril 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 combining it with a thiazide and ACE inhibitor may increase the blood pressure lowering effect. Patients may experience dizziness and falls, especially when starting or increasing levodopa.

What this interaction means in plain words

Hydrochlorothiazide-lisinopril 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-lisinopril belongs to Cardiovascular; Levodopa belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive hypotensive effects from dopaminergic vasodilation and autonomic effects of levodopa with diuretic-induced volume reduction and ACE inhibition.

What to do

Monitor blood pressure, including standing readings, when starting or titrating levodopa. 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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Hydrochlorothiazide-lisinopril with Levodopa?

MediHelp rates the interaction as moderate. Hydrochlorothiazide-lisinopril 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 combining it with a thiazide and ACE inhibitor may increase the blood pressure lowering effect. Patients may experience dizziness and falls, especially when starting or increasing levodopa.

How serious is the interaction between Hydrochlorothiazide-lisinopril 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 titrating levodopa. Reduce the antihypertensive dose if symptomatic hypotension occurs.

What other medicines interact with Hydrochlorothiazide-lisinopril?

MediHelp also lists interactions of Hydrochlorothiazide-lisinopril with, for example, Dofetilide, Sacubitril / valsartan, Amifostine. The full list is on the Hydrochlorothiazide-lisinopril page.

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