Drug interactions
Carbidopa + Furosemide
Severity: Moderate
Carbidopa and Furosemide: 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 with levodopa can cause orthostatic hypotension, which may add to the blood pressure lowering and volume depletion of furosemide. Dizziness and falls may result.
What this interaction means in plain words
Carbidopa and Furosemide 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 belongs to Central Nervous System; Furosemide belongs to Cardiovascular.
Why it happens
Additive hypotensive effects from levodopa-derived dopamine and diuretic-induced volume loss.
What to do
Check orthostatic blood pressure when starting or adjusting therapy and reduce the antihypertensive or diuretic dose if symptomatic.
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 Furosemide
- Amifostine + Furosemide Major
- Amikacin + Furosemide Major
- Carbenoxolone + Furosemide Major
- Cephaloridine + Furosemide Major
- Cisplatin + Furosemide Major
- Digoxin + Furosemide Major
Other interactions of Carbidopa
Frequently asked questions
Can I take Carbidopa with Furosemide?
MediHelp rates the interaction as moderate. Carbidopa and Furosemide 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 with levodopa can cause orthostatic hypotension, which may add to the blood pressure lowering and volume depletion of furosemide. Dizziness and falls may result.
How serious is the interaction between Carbidopa and Furosemide?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check orthostatic blood pressure when starting or adjusting therapy and reduce the antihypertensive or diuretic dose if symptomatic.
What other medicines interact with Furosemide?
MediHelp also lists interactions of Furosemide with, for example, Amifostine, Amikacin, Carbenoxolone. The full list is on the Furosemide page.
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