Drug interactions
Carbidopa + Perindopril
Severity: Moderate
Carbidopa and Perindopril: 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 is usually given with levodopa, and levodopa therapy can cause orthostatic hypotension. With an ACE inhibitor, blood pressure lowering may be additive, but carbidopa alone has little hypotensive effect.
What this interaction means in plain words
Carbidopa and Perindopril 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; Perindopril belongs to Cardiovascular.
Why it happens
Additive hypotension from levodopa-derived dopaminergic vasodilation together with ACE inhibition.
What to do
Monitor blood pressure and orthostatic symptoms when starting or adjusting levodopa/carbidopa. Reduce the perindopril 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 Perindopril
- Aliskiren + Perindopril Contraindicated
- Perindopril + Protein a column Contraindicated
- Perindopril + Sacubitril / valsartan Contraindicated
- Perindopril + Sacubitril-valsartan Contraindicated
- Amifostine + Perindopril Major
- Amiloride + Perindopril Major
Other interactions of Carbidopa
Frequently asked questions
Can I take Carbidopa with Perindopril?
MediHelp rates the interaction as moderate. Carbidopa and Perindopril 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 is usually given with levodopa, and levodopa therapy can cause orthostatic hypotension. With an ACE inhibitor, blood pressure lowering may be additive, but carbidopa alone has little hypotensive effect.
How serious is the interaction between Carbidopa and Perindopril?
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. Reduce the perindopril dose if symptomatic hypotension occurs.
What other medicines interact with Perindopril?
MediHelp also lists interactions of Perindopril with, for example, Aliskiren, Protein a column, Sacubitril / valsartan. The full list is on the Perindopril page.
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