GNH USA

Europe — EMA

Imuran

GNH USA supplies Imuran (Azathioprine), an immunosuppressant for transplant rejection, rheumatoid arthritis and inflammatory bowel disease. Request a quote.

Azathioprine

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What is Azathioprine?

Azathioprine, the active ingredient in Imuran, is an immunosuppressant (antimetabolite) presented as an oral tablet for oral use. It is employed to prevent organ transplant rejection and to manage several autoimmune disorders such as rheumatoid arthritis, inflammatory bowel disease, and systemic lupus erythematosus.

GNH USA supplies Imuran as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, transplant centres, oncology centres, pharmacies and clinics worldwide.

What is Azathioprine used for?

Azathioprine is used to modulate immune activity in several chronic inflammatory and autoimmune conditions.

Organ transplant rejection: helps prevent graft rejection by suppressing the immune response. Rheumatoid arthritis: reduces joint inflammation and slows disease progression. Inflammatory bowel disease (Crohn's disease and ulcerative colitis): controls intestinal inflammation and maintains remission.

What are the side effects of Azathioprine?

Azathioprine may cause a range of adverse reactions, from mild to severe.

Common Side Effects: - Nausea or vomiting - Loss of appetite - Mild leukopenia or anemia - Rash or pruritus - Fatigue or headache - Elevated liver enzymes

Serious or Rare Side Effects: - Severe bone marrow suppression (pancytopenia) - Hepatotoxicity or cholestatic hepatitis - Acute pancreatitis - Increased susceptibility to opportunistic infections - Malignancies such as lymphoma or skin cancer - Stevens‑Johnson syndrome or toxic epidermal necrolysis

What precautions apply to Azathioprine?

Before initiating azathioprine therapy, several safety considerations are recommended.

Baseline monitoring: obtain complete blood count and liver function tests before starting treatment. Infection risk: monitor for signs of infection and avoid live vaccines during therapy. Hepatic function: adjust dose or avoid use in patients with significant liver impairment. Renal function: use caution and consider dose adjustment in renal insufficiency. Pregnancy and lactation: prescribe only if benefits outweigh potential risks and after specialist consultation. Store at ambient temperature: keep tablets in the original container, protect from moisture and heat.

What does Azathioprine interact with?

Azathioprine interacts with several medicines that can alter its safety or effectiveness.

Major Interactions (Avoid): - Allopurinol: may increase azathioprine toxicity. - Warfarin: potentiates anticoagulant effect, increasing bleeding risk. - Live vaccines: heightened risk of severe infection.

Moderate Interactions (Monitor Closely): - Sulfasalazine: may augment myelosuppression. - ACE inhibitors: monitor renal function and blood pressure.

Frequently asked questions

What conditions is Imuran (azathioprine) used for?+
Imuran, whose active ingredient is azathioprine, is prescribed to prevent organ transplant rejection and to treat several autoimmune diseases, including rheumatoid arthritis, inflammatory bowel disease such as Crohn’s disease and ulcerative colitis, and systemic lupus erythematosus. It works by dampening the immune response that drives these conditions.
How does azathioprine work to suppress the immune system?+
Azathioprine is a purine analog that is metabolized inside cells to 6‑mercaptopurine. This metabolite blocks the synthesis of new purine nucleotides, which are essential for DNA replication. By limiting DNA synthesis, the drug reduces the proliferation of activated T‑ and B‑lymphocytes, thereby decreasing immune activity and inflammation.
What is the usual dose of Imuran?+
The dosage of Imuran is individualized. A qualified prescriber determines the appropriate dose based on the specific indication, patient weight, renal and hepatic function, and response to therapy. Patients should follow the prescribing clinician’s instructions and not adjust the dose on their own.
Is azathioprine safe during pregnancy or breastfeeding?+
The safety of azathioprine in pregnancy and lactation is not fully established. It should only be used when the potential benefits to the mother outweigh possible risks to the fetus or infant, and this decision must be made by a specialist. Breastfeeding mothers should discuss risks with their healthcare provider.
How do I order Imuran from GNH USA?+
To order Imuran, submit an enquiry on the product page at gnh-usa.com, specifying the required quantity. GNH USA works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain requirements), and necessary import documentation.
How does Imuran compare with other immunosuppressants?+
Azathioprine belongs to the antimetabolite class of immunosuppressants, differing from calcineurin inhibitors like cyclosporine or tacrolimus, which act on T‑cell activation pathways. Azathioprine’s oral administration and long‑term safety profile make it suitable for many chronic autoimmune conditions, whereas calcineurin inhibitors are often preferred for rapid, potent suppression in transplant protocols.
What are the recommended storage conditions for Imuran tablets?+
Imuran tablets should be stored at ambient temperature, below 25 °C. Keep them in the original packaging to protect from moisture and light, and store them out of reach of children. Do not refrigerate or freeze the tablets.
How is Imuran administered to patients?+
Imuran is taken orally as a tablet, usually with food or a glass of water to reduce gastrointestinal irritation. The exact dosing schedule—once daily or divided doses—depends on the prescriber’s instructions and the condition being treated.
What are the most serious risks associated with azathioprine therapy?+
Serious risks include severe bone‑marrow suppression leading to pancytopenia, hepatotoxicity, pancreatitis, opportunistic infections, and an increased long‑term risk of certain malignancies such as lymphoma or skin cancer. Patients should undergo regular blood monitoring to detect early signs of these complications.
Who should not use Imuran (azathioprine)?+
Imuran is contraindicated in patients with known hypersensitivity to azathioprine or its metabolites, those with severe hepatic impairment, and individuals who are pregnant or breastfeeding unless the benefits clearly outweigh the risks. It should also be avoided in patients with active, uncontrolled infections.
Information provided on this page is for educational use by procurement and clinical professionals. Always consult a licensed healthcare provider for medical advice and prescribing decisions. GNH USA supplies this product subject to applicable regulatory and licensing requirements.

Product details

Drug
Azathioprine
Route
Oral Use
Manufacturer
Aspen Pharma Trading Limited
Origin
EU

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