Drug interactions
Carbidopa + Sotalol
Severity: Moderate
Carbidopa and Sotalol: 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, usually given with levodopa, can add to the blood pressure lowering of antihypertensive agents including sotalol. Orthostatic hypotension may occur, particularly when levodopa therapy is started.
What this interaction means in plain words
Carbidopa and Sotalol 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; Sotalol belongs to Cardiovascular.
Why it happens
Additive hypotensive effect from levodopa-derived dopamine and peripheral vasodilation combined with beta-blockade.
What to do
Monitor blood pressure and orthostatic symptoms when starting or adjusting levodopa/carbidopa, and reduce the antihypertensive dose if needed.
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 Sotalol
- Arsenic trioxide + Sotalol Contraindicated
- Artemether / lumefantrine + Sotalol Contraindicated
- Disopyramide + Sotalol Contraindicated
- Dofetilide + Sotalol Contraindicated
- Dronedarone + Sotalol Contraindicated
- Droperidol + Sotalol Contraindicated
Other interactions of Carbidopa
Frequently asked questions
Can I take Carbidopa with Sotalol?
MediHelp rates the interaction as moderate. Carbidopa and Sotalol 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, usually given with levodopa, can add to the blood pressure lowering of antihypertensive agents including sotalol. Orthostatic hypotension may occur, particularly when levodopa therapy is started.
How serious is the interaction between Carbidopa and Sotalol?
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 and orthostatic symptoms when starting or adjusting levodopa/carbidopa, and reduce the antihypertensive dose if needed.
What other medicines interact with Sotalol?
MediHelp also lists interactions of Sotalol with, for example, Arsenic trioxide, Artemether / lumefantrine, Disopyramide. The full list is on the Sotalol page.
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