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(azathioprine) 75 mg, 100 mg Scored Tablets , USP
- Patient Information:
Details with Side Effects
Chronic immunosuppression with this purine antimetabolite increases risk of neoplasia in humans. Physicians using this drug should be very familiar with this risk as well as with the mutagenic potential to both men and women and with possible hematologic toxicities. See WARNINGS.
AZASAN® (azathioprine) , an immunosuppressive antimetabolite, is available in tablet form for oral administration. Each scored tablet contains 75 mg or 100 mg azathioprine and the inactive ingredients lactose monohydrate, pregelatinized starch, povidone, corn starch, magnesium stearate, and stearic acid.
Azathioprine is chemically 1H-purine, 6-[(1-methyl-4-nitro-1H-imidazol-5-yl)thio]-. The structural formula of azathioprine is:
It is an imidazolyl derivative of 6-mercaptopurine and many of its biological effects are similar to those of the parent compound.
Azathioprine is insoluble in water, but may be dissolved with addition of one molar equivalent of alkali. The sodium salt of azathioprine is sufficiently soluble to make a 10 mg/mL water solution which is stable for 24 hours at 59° to 77°F (15° to 25°C). Azathioprine is stable in solution at neutral or acid pH but hydrolysis to mercaptopurine occurs in excess sodium hydroxide (0.1N), especially on warming. Conversion to mercaptopurine also occurs in the presence of sulfhydryl compounds such as cysteine, glutathione, and hydrogen sulfide.
What are the possible side effects of azathioprine (Azasan, Imuran)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
- fever, night sweats, weight loss, tiredness;
- feeling full after eating only a small amount;
- pain in your upper stomach that may spread to your shoulder;
- easy bruising or bleeding, pale skin, feeling light-headed or short of breath, rapid heart rate; or
- nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or...
Last reviewed on RxList: 9/14/2009
This monograph has been modified to include the generic and brand name in many instances.
Additional Azasan Information
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