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Drug interactions

Atenolol-chlorthalidone + Cosyntropin

Severity: Minor

Atenolol-chlorthalidone and Cosyntropin: 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

Cosyntropin is a short-acting diagnostic corticotropin analogue and its effect on potassium is brief. A clinically meaningful additive electrolyte loss with chlorthalidone is unlikely.

What this interaction means in plain words

Atenolol-chlorthalidone and Cosyntropin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Atenolol-chlorthalidone belongs to Cardiovascular; Cosyntropin belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Transient adrenal stimulation may slightly increase potassium excretion.

What to do

No specific action is needed for a single diagnostic dose. Check potassium if the patient is already hypokalemic.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Atenolol-chlorthalidone with Cosyntropin?

MediHelp rates the interaction as minor. Atenolol-chlorthalidone and Cosyntropin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Cosyntropin is a short-acting diagnostic corticotropin analogue and its effect on potassium is brief. A clinically meaningful additive electrolyte loss with chlorthalidone is unlikely.

How serious is the interaction between Atenolol-chlorthalidone and Cosyntropin?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific action is needed for a single diagnostic dose. Check potassium if the patient is already hypokalemic.

What other medicines interact with Atenolol-chlorthalidone?

MediHelp also lists interactions of Atenolol-chlorthalidone with, for example, Acebutolol, Aldesleukin, Amiodarone. The full list is on the Atenolol-chlorthalidone page.

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