Drug interactions
Levodopa + Nifedipine
Severity: Moderate
Levodopa and Nifedipine: 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 nifedipine adds to the blood pressure lowering. Patients may experience dizziness or falls, particularly at initiation.
What this interaction means in plain words
Levodopa and Nifedipine 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; Nifedipine belongs to Cardiovascular.
Why it happens
Additive hypotensive effects from levodopa-derived dopamine vasodilation and calcium channel blockade.
What to do
Monitor sitting and standing blood pressure 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 Nifedipine
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 Nifedipine?
MediHelp rates the interaction as moderate. Levodopa and Nifedipine 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 nifedipine adds to the blood pressure lowering. Patients may experience dizziness or falls, particularly at initiation.
How serious is the interaction between Levodopa and Nifedipine?
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 adjusting either drug. Reduce the antihypertensive dose if symptomatic hypotension occurs.
What other medicines interact with Nifedipine?
MediHelp also lists interactions of Nifedipine with, for example, Amifostine, Amlodipine-benazepril, Apalutamide. The full list is on the Nifedipine page.
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