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Medicines para-aminosalicylic acidQuestion & answer

para-aminosalicylic acid · Medicine question

Does para-aminosalicylic acid affect vitamin B12?

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

The answer

Answer

It may reduce vitamin B12 absorption, so deficiency prevention or monitoring may be considered during extended treatment.

Sources for this answer

Granupasemc · SmPC Current selected SmPC · Version 1

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The full medicine guide

para-aminosalicylic acid

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