For patients
Azathioprine
AZA, 6-mercaptopurine (related)
Are you a clinician? See the clinical version of this page.
The short versionAzathioprine is usually continued through pregnancy and breastfeeding at the doses used in rheumatic disease, and it is considered compatible for fathers-to-be. It is a common choice when a stronger medicine is needed during pregnancy.
- Azathioprine is often the medicine people switch to when they need more than hydroxychloroquine during pregnancy.
Through your pregnancy journey
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Before pregnancy
Usually continued.
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First trimester
Usually continued.
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Second & third trimester
Usually continued to delivery.
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Breastfeeding
Considered compatible with breastfeeding.
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For fathers-to-be
Considered compatible for fathers-to-be.
iThis page helps you prepare a conversation with your care team. It does not replace individual medical advice. Always confirm your own plan with your rheumatology and pregnancy team.
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When to call your team
- Do not stop without talking to your team.
- Attend your routine blood-test monitoring.