Azathioprin
Brand names,
Azathioprin
Analogs
Azathioprin
Brand Names Mixture
Azathioprin
Chemical_Formula
C9H7N7O2S
Azathioprin
RX_link
http://www.rxlist.com/cgi/generic/azathioprine.htm
Azathioprin
fda sheet
Azathioprin
msds (material safety sheet)
Azathioprin
Synthesis Reference
No information avaliable
Azathioprin
Molecular Weight
277.264 g/mol
Azathioprin
Melting Point
243.5 oC
Azathioprin
H2O Solubility
272 mg/L
Azathioprin
State
Solid
Azathioprin
LogP
1.001
Azathioprin
Dosage Forms
Powder for solution and tablets for oral administration (25 mg, 75 mg and 100 mg)
Azathioprin
Indication
For use as an adjunct in the prevention of rejection in renal homotransplantation. Also for the management of severe, active rheumatoid arthritis unresponsive to rest, aspirin or other nonsteroidal anti-inflammatory drugs, or to agents in the class of which gold is an example.
Azathioprin
Pharmacology
Azathioprine is a chemotherapy drug, now rarely used for chemotherapy but more for immunosuppression in organ transplantation and autoimmune disease such as rheumatoid arthritis or inflammatory bowel disease or Crohn's disease. It is a pro-drug, converted in the body to the active metabolite 6-mercaptopurine. Azathioprine acts to inhibit purine synthesis necessary for the proliferation of cells, especially leukocytes and lymphocytes. It is a safe and effective drug used alone in certain autoimmune diseases, or in combination with other immunosuppressants in organ transplantation. Its most severe side effect is bone marrow suppression, and it should not be given in conjunction with purine analogues such as allopurinol. The enzyme thiopurine S-methyltransferase (TPMT) deactivates 6-mercaptopurine. Genetic polymorphisms of TPMT can lead to excessive drug toxicity, thus assay of serum TPMT may be useful to prevent this complication.
Azathioprin
Absorption
Well absorbed following oral administration.
Azathioprin
side effects and Toxicity
The oral LD50 for single doses of azathioprine in mice and rats are 2500 mg/kg and 400 mg/kg, respectively. Very large doses of this antimetabolite may lead to marrow hypoplasia, bleeding, infection, and death.
Azathioprin
Patient Information
Azathioprin
Organisms Affected
Humans and other mammals