azathioprine · Medicine question

Why is hypersensitivity to 6-mercaptopurine relevant when prescribing azathioprine?

Name: Why is hypersensitivity to 6-mercaptopurine relevant when prescribing azathioprine?
Published: 2026-11-08T13:42:21.567Z

iatroX medicinesPublished 8 November 2026

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Hypersensitivity to 6-mercaptopurine should alert the prescriber to probable hypersensitivity to azathioprine, which is a contraindication to azathioprine treatment.

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Azathioprine 50mg Film-Coated TabletsTillomed Laboratories Ltd · emc · SmPC §4.3 Contraindications · Version 10Document updated 4 November 2026

Sources checked 8 November 2026

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