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Imuran

Azathioprine

Developed to target immune system activity, utilized to mitigate inflammation in autoimmune processes and to support transplant rejection prevention.

Active ingredient
Azathioprine
Route
Oral use
Form
Film-coated tablet
Strengths
25 · 50mg

You will receive a quality generic equivalent, depending on stock.

Prescription rules on Imuran vary by country.

Imuran details

Therapeutic class
Immunosuppressant
Pharmacological class
Purine Analogue
Known off-label uses
crohn's disease
Minor side effects
nausea; fatigue; infection
Moderate side effects
leukopenia; thrombocytopenia; elevated liver enzymes
Dosage forms
Film-coated tablet
Administration route
Oral use
Supply category
Prescription only (specially controlled medicine)
Originator
Aspen Pharma
Onset Time
2–4 weeks
Duration
24 hours
Storage instructions
Store below 25°C in original packaging.
Drug interactions
allopurinol; warfarin
Age restrictions
Used in children and adults under specialist supervision.
Contraindications

hypersensitivity to azathioprine; severe infections; severe bone marrow suppression

Precautions and warnings

monitor full blood count; limit sun exposure due to skin cancer risk; report any signs of infection immediately

Serious side effects

bone marrow suppression, requires immediate medical attention; malignancy, requires immediate medical attention; pancreatitis, requires immediate medical attention

Patient summary

Developed to target immune system activity, utilized to mitigate inflammation in autoimmune processes and to support transplant rejection prevention.

Mechanism of action

Azathioprine is a purine analogue that interferes with DNA synthesis, thereby inhibiting the proliferation of rapidly dividing cells such as T-lymphocytes necessary for immune responses.

Pregnancy and breastfeeding

Pregnancy: Use only if benefits outweigh risks. Breastfeeding: Small amounts excreted; specialist advice required.

What you will receive

Imuran is the originator brand name, made by Aspen Pharma. We use it here to identify the medicine only; we are not affiliated with Aspen Pharma and do not ship the original Imuran.

  • You receive a generic equivalent: the same active ingredient (Azathioprine) at the same dose, mostly recognised Indian branded generics from vetted manufacturers.
  • The exact brand supplied depends on what is in stock at the dispatching warehouse.
  • A regulated generic matches the original ingredient for ingredient by legal standard.

Are all generics really the same? Read the honest answer.

Where this medicine is registered

  • Singapore
  • Hong Kong
  • Thailand
  • Malaysia
  • Philippines
  • Indonesia
  • Taiwan
  • South Korea
  • Japan
  • Australia
  • New Zealand
  • UAE
  • South Africa

About Imuran

Imuran is the original brand of azathioprine, a medicine used for managing transplant rejection, rheumatoid arthritis and systemic lupus erythematosus. This treatment is available as a tablet in 25mg and 50mg strengths. Clinical usage focuses on the management of chronic conditions where immune response requires careful control.

Imuran availability in Asia

Imuran is registered across 14 markets including the Philippines, Indonesia and Taiwan, with availability also in South Korea, Japan and the UAE. Generic azathioprine, often produced in India, serves as a consistent and more affordable alternative to the original brand, offering practical options for expats living far from a fully stocked pharmacy. This medication is best used under a doctor’s care to ensure correct management of the underlying condition.