What is Azathioprine?
Azathioprine is an immunosuppressive medication. It is used to prevent organ transplant rejection and to treat autoimmune diseases such as rheumatoid arthritis, Crohn's disease, ulcerative colitis, and multiple sclerosis [1].
How does Azathioprine work?
Azathioprine is a prodrug, meaning it is converted in the body into active metabolites. These metabolites interfere with the synthesis of purines, which are essential components of DNA and RNA. By disrupting DNA and RNA synthesis, azathioprine inhibits the proliferation of rapidly dividing cells, particularly lymphocytes, which are key players in the immune response [2].
What are the common side effects of Azathioprine?
Common side effects of azathioprine can include nausea, vomiting, loss of appetite, diarrhea, and fatigue. More serious side effects, though less common, can involve bone marrow suppression leading to decreased white blood cell counts (increasing infection risk), liver damage, and an increased risk of certain cancers [3].
How much does Azathioprine cost?
The cost of azathioprine can vary significantly depending on factors such as dosage, quantity, insurance coverage, and the specific pharmacy. Generic versions are generally more affordable than brand-name options. Without insurance, a 30-day supply of generic azathioprine can range from approximately $20 to $100 or more. Patient assistance programs and discount cards may help reduce out-of-pocket expenses [4].
Are there discount programs for Azathioprine?
Yes, discount programs can help lower the cost of azathioprine. These may include manufacturer-sponsored coupons, pharmacy discount cards, and patient assistance programs offered by pharmaceutical companies. Checking with your pharmacist or looking for coupons online can reveal available discounts [4].
When does the patent for Azathioprine expire?
Azathioprine is a long-established medication and its original patents have long expired. This means that generic versions have been available for many years [5].
What are the alternatives to Azathioprine?
Treatment options for autoimmune diseases and transplant rejection can include other immunosuppressants such as methotrexate, mycophenolate mofetil, and tacrolimus. The choice of medication depends on the specific condition being treated, individual patient factors, and potential side effects [1].
What are the risks associated with Azathioprine treatment?
Key risks with azathioprine include its potential for bone marrow suppression, liver toxicity, and an increased risk of developing infections and certain types of cancer, such as skin cancer and lymphoma. Regular monitoring of blood counts and liver function is crucial during treatment [3].
How is Azathioprine prescribed?
Azathioprine is a prescription medication and must be dispensed by a licensed pharmacy under the guidance of a healthcare professional. Dosage is determined by the treating physician based on the patient's condition and response to the medication [1].
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Sources:
[1] National Institute of Diabetes and Digestive and Kidney Diseases. (n.d.). Azathioprine. Retrieved from https://www.niddk.nih.gov/health-information/drug-information/azathioprine
[2] DrugBank. (n.d.). Azathioprine. Retrieved from https://go.drugbank.com/drugs/DB00677
[3] Mayo Clinic. (n.d.). Azathioprine (Oral Route, Parenteral Route). Retrieved from https://www.mayoclinic.org/drugs-supplements/azathioprine-oral-route-parenteral-route/side-effects/drg-20061287
[4] GoodRx. (n.d.). Azathioprine Prices, Coupons, and Patient Assistance Programs. Retrieved from https://www.goodrx.com/azathioprine
[5] DrugPatentWatch.com. (n.d.). Azathioprine Patents & Exclusivity. Retrieved from https://drugpatentwatch.com/p/azathioprine