Drug interactions
Aspirin + Vitamin c
Severity: Minor
Aspirin and Vitamin c: 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
Ascorbic acid may slightly acidify urine and reduce salicylate excretion, while aspirin may modestly increase ascorbic acid loss. Clinical consequences are generally negligible at usual doses.
What this interaction means in plain words
Aspirin and Vitamin c have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Urinary acidification increases tubular reabsorption of salicylate, and aspirin may reduce ascorbic acid uptake or increase its excretion.
What to do
No routine action is needed at usual doses. Monitor for salicylate toxicity signs if very high-dose vitamin C is combined with chronic high-dose aspirin.
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 Vitamin c
Frequently asked questions
Can I take Aspirin with Vitamin c?
MediHelp rates the interaction as minor. Aspirin and Vitamin c have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ascorbic acid may slightly acidify urine and reduce salicylate excretion, while aspirin may modestly increase ascorbic acid loss. Clinical consequences are generally negligible at usual doses.
How serious is the interaction between Aspirin and Vitamin c?
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 routine action is needed at usual doses. Monitor for salicylate toxicity signs if very high-dose vitamin C is combined with chronic high-dose aspirin.
What other medicines interact with Vitamin c?
MediHelp also lists interactions of Vitamin c with, for example, Deferoxamine, Aluminum hydroxide, Dextroamphetamine transdermal. The full list is on the Vitamin c page.
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