Drug interactions
Chlorthalidone + Metoprolol
Severity: Minor
Chlorthalidone and Metoprolol: 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
This combination is commonly used and produces additive blood pressure reduction. Thiazide diuretics may modestly worsen glucose and lipid parameters, and beta-blockers can mask hypoglycemia symptoms. Beta-blockers do not reliably correct diuretic-induced hypokalemia.
What this interaction means in plain words
Chlorthalidone and Metoprolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Chlorthalidone belongs to Cardiovascular; Metoprolol belongs to Cardiovascular.
Why it happens
Complementary antihypertensive actions; both drug classes can adversely affect glucose metabolism.
What to do
Monitor blood pressure, heart rate and periodically potassium and glucose, especially in diabetic patients.
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 Chlorthalidone
Other interactions of Metoprolol
- Metoprolol + Thioridazine Contraindicated
- Amifostine + Metoprolol Major
- Amiodarone + Metoprolol Major
- Atenolol-chlorthalidone + Metoprolol Major
- Atenolol + Metoprolol Major
- Betaxolol + Metoprolol Major
Frequently asked questions
Can I take Chlorthalidone with Metoprolol?
MediHelp rates the interaction as minor. Chlorthalidone and Metoprolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. This combination is commonly used and produces additive blood pressure reduction. Thiazide diuretics may modestly worsen glucose and lipid parameters, and beta-blockers can mask hypoglycemia symptoms. Beta-blockers do not reliably correct diuretic-induced hypokalemia.
How serious is the interaction between Chlorthalidone and Metoprolol?
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, heart rate and periodically potassium and glucose, especially in diabetic patients.
What other medicines interact with Chlorthalidone?
MediHelp also lists interactions of Chlorthalidone with, for example, Amifostine, Atenolol-chlorthalidone, Candesartan-hydrochlorothiazide. The full list is on the Chlorthalidone page.
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