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Drug interactions

Ascorbic acid + Copper

Severity: Minor

Ascorbic acid and Copper: 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

High-dose vitamin C has been reported to reduce copper absorption and status, mainly in animal and limited human data. Clinical significance at usual doses is small.

What this interaction means in plain words

Ascorbic acid and Copper 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

Ascorbic acid may reduce cupric to cuprous copper and impair its intestinal uptake; mechanism not firmly established.

What to do

No action for usual doses. If prolonged high-dose vitamin C is used in someone at risk of copper deficiency, monitor copper status.

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 Ascorbic acid with Copper?

MediHelp rates the interaction as minor. Ascorbic acid and Copper have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. High-dose vitamin C has been reported to reduce copper absorption and status, mainly in animal and limited human data. Clinical significance at usual doses is small.

How serious is the interaction between Ascorbic acid and Copper?

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 action for usual doses. If prolonged high-dose vitamin C is used in someone at risk of copper deficiency, monitor copper status.

What other medicines interact with Copper?

MediHelp also lists interactions of Copper with, for example, Omadacycline, Penicillamine, Sarecycline. The full list is on the Copper page.

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