Azathioprine

A purine analogue that interferes with DNA synthesis, specifically suppressing T-cell activity. Often used to maintain remission in Crohn’s disease.

Dosage by Body Weight

Standard dose: 1.5–2.5 mg/kg daily. TPMT enzyme testing is recommended before starting to avoid toxicity.

Weight-based dosage tracking table for Azathioprine, including body weight, dose, frequency, and tracking notes.
Body Weight	Dose	Frequency	Tracking Notes
20-30 kg	50 mg	Once daily	Requires monthly blood counts to check for bone marrow suppression.

Tablet

Immunosuppressant for IBD, autoimmune hepatitis, and transplant rejection.

Azathioprine is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:

Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.

CAUTION

Azathioprine: Alcohol can increase liver strain, stomach irritation, or immune-related complications. Avoid alcohol unless your specialist allows it.

CAUTION

Azathioprine: Use in pregnancy only under specialist advice because immune, cancer, or transplant treatment requires careful risk assessment.

CAUTION

Azathioprine: Breastfeeding may not be recommended with some immunosuppressive or chemotherapy medicines. Follow specialist advice.

CAUTION

Azathioprine: May cause dizziness, fatigue, nausea, or weakness. Avoid driving if affected.

CAUTION

Azathioprine: Can affect liver function and usually requires regular blood tests. Use only with specialist monitoring.

CAUTION

Azathioprine: Kidney function may need close monitoring, particularly with calcineurin inhibitors or high-risk regimens.