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Drug interactions

Cimetidine + Devil's claw

Severity: Minor

Cimetidine and Devil's claw: 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

Devil's claw may stimulate gastric acid secretion and could theoretically oppose the effect of acid-suppressing drugs. No clinical evidence confirms this.

What this interaction means in plain words

Cimetidine and Devil's claw have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Theoretical pharmacodynamic opposition between an acid-stimulating herb and an H2 antagonist.

What to do

Advise patients with peptic ulcer or reflux disease to avoid devil's claw, and monitor symptom control.

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 Cimetidine with Devil's claw?

MediHelp rates the interaction as minor. Cimetidine and Devil's claw have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Devil's claw may stimulate gastric acid secretion and could theoretically oppose the effect of acid-suppressing drugs. No clinical evidence confirms this.

How serious is the interaction between Cimetidine and Devil's claw?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients with peptic ulcer or reflux disease to avoid devil's claw, and monitor symptom control.

What other medicines interact with Cimetidine?

MediHelp also lists interactions of Cimetidine with, for example, Dofetilide, Fezolinetant, Alfentanil. The full list is on the Cimetidine page.

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