Drug interactions
Carvedilol + Cyclopenthiazide
Severity: Minor
Carvedilol and Cyclopenthiazide: 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
Thiazide diuretics add to carvedilol's blood pressure lowering and cause potassium loss. The combination is commonly used but can cause hypotension and electrolyte disturbance.
What this interaction means in plain words
Carvedilol and Cyclopenthiazide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Additive antihypertensive effect; thiazide-induced potassium loss and volume depletion.
What to do
Monitor blood pressure and serum potassium periodically, and adjust doses if hypotension or hypokalemia develops.
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?
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Other interactions of Carvedilol
Frequently asked questions
Can I take Carvedilol with Cyclopenthiazide?
MediHelp rates the interaction as minor. Carvedilol and Cyclopenthiazide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Thiazide diuretics add to carvedilol's blood pressure lowering and cause potassium loss. The combination is commonly used but can cause hypotension and electrolyte disturbance.
How serious is the interaction between Carvedilol and Cyclopenthiazide?
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 and serum potassium periodically, and adjust doses if hypotension or hypokalemia develops.
What other medicines interact with Carvedilol?
MediHelp also lists interactions of Carvedilol with, for example, Amifostine, Amiodarone, Arformoterol. The full list is on the Carvedilol page.
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