Drug interactions
Carbidopa + Propranolol
Severity: Minor
Carbidopa and Propranolol: minor 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 typically used with levodopa, which can lower blood pressure and cause orthostatic hypotension. With propranolol, hypotensive effects may be additive.
What this interaction means in plain words
Carbidopa and Propranolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Carbidopa belongs to Central Nervous System; Propranolol belongs to Cardiovascular.
Why it happens
Additive hypotensive effects from levodopa-derived dopamine with beta-blockade.
What to do
Monitor blood pressure, including standing readings, when levodopa/carbidopa is started and adjust the antihypertensive dose if needed.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Carbidopa and Propranolol, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Propranolol
- Propranolol + Thioridazine Contraindicated
- Acebutolol + Propranolol Major
- Adrenaline-articaine + Propranolol Major
- Amifostine + Propranolol Major
- Amiodarone + Propranolol Major
- Arformoterol + Propranolol Major
Other interactions of Carbidopa
Frequently asked questions
Can I take Carbidopa with Propranolol?
MediHelp rates the interaction as minor. Carbidopa and Propranolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Carbidopa is typically used with levodopa, which can lower blood pressure and cause orthostatic hypotension. With propranolol, hypotensive effects may be additive.
How serious is the interaction between Carbidopa and Propranolol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure, including standing readings, when levodopa/carbidopa is started and adjust the antihypertensive dose if needed.
What other medicines interact with Propranolol?
MediHelp also lists interactions of Propranolol with, for example, Thioridazine, Acebutolol, Adrenaline-articaine. The full list is on the Propranolol page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
