Drug interactions
Levodopa + Spironolactone
Severity: Moderate
Levodopa and Spironolactone: 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, which may be amplified by the blood pressure lowering and volume-depleting effects of spironolactone. Patients may experience dizziness or falls.
What this interaction means in plain words
Levodopa and Spironolactone 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 belongs to Central Nervous System; Spironolactone belongs to Cardiovascular.
Why it happens
Additive hypotensive effects from dopaminergic vasodilation and diuretic-mediated volume reduction.
What to do
Monitor sitting and standing blood pressure when starting or increasing levodopa. Lower the spironolactone dose if symptomatic orthostatic 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 Spironolactone
- Amiloride + Spironolactone Contraindicated
- Eplerenone + Spironolactone Contraindicated
- Spironolactone + Triamterene Contraindicated
- Abiraterone + Spironolactone Major
- Aceclofenac + Spironolactone Major
- Acemetacin + Spironolactone 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 Levodopa with Spironolactone?
MediHelp rates the interaction as moderate. Levodopa and Spironolactone 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, which may be amplified by the blood pressure lowering and volume-depleting effects of spironolactone. Patients may experience dizziness or falls.
How serious is the interaction between Levodopa and Spironolactone?
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 sitting and standing blood pressure when starting or increasing levodopa. Lower the spironolactone dose if symptomatic orthostatic hypotension occurs.
What other medicines interact with Spironolactone?
MediHelp also lists interactions of Spironolactone with, for example, Amiloride, Eplerenone, Triamterene. The full list is on the Spironolactone page.
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