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Drug interactions

Cosyntropin + Hydrochlorothiazide

Severity: Minor

Cosyntropin and Hydrochlorothiazide: 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 used as a single diagnostic dose that briefly stimulates cortisol release. Any effect on potassium with hydrochlorothiazide is transient and not clinically meaningful.

What this interaction means in plain words

Cosyntropin and Hydrochlorothiazide 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 belongs to Musculoskeletal; Hydrochlorothiazide belongs to Cardiovascular.

Evidence level: Low

Why it happens

Transient corticosteroid release could add to thiazide potassium loss, but this is theoretical.

What to do

No specific action is required for a single diagnostic test.

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 Cosyntropin with Hydrochlorothiazide?

MediHelp rates the interaction as minor. Cosyntropin and Hydrochlorothiazide 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 used as a single diagnostic dose that briefly stimulates cortisol release. Any effect on potassium with hydrochlorothiazide is transient and not clinically meaningful.

How serious is the interaction between Cosyntropin and Hydrochlorothiazide?

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 required for a single diagnostic test.

What other medicines interact with Hydrochlorothiazide?

MediHelp also lists interactions of Hydrochlorothiazide with, for example, Dofetilide, Amifostine, Amiodarone. The full list is on the Hydrochlorothiazide page.

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