July 25, 2016




There are no reported instances of deliberate or accidental overdosage in humans. Animal toxicology studies have shown no adverse reactions in single doses up to 20 mg/kg and in repeated doses up to 6 mg/kg/day for 13 weeks, which were the highest doses studied. The highest single dose tested in animals represents 800-times the clinical dose. Human studies have shown no adverse reactions at doses up to 16 mg biw for 4 weeks.


ZADAXIN (thymalfasin) is contraindicated in patients with a history of hypersensitivity to thymosin alpha 1 or any component of the injection. Because ZADAXIN (thymalfasin) therapy appears to work by enhancing the immune system, it should be considered contraindicated in patients who are being deliberately immunosuppressed, such as organ transplant patients, unless the potential benefits of the therapy clearly outweigh the potential risks

This monograph has been modified to include the generic and brand name in many instances.

Last reviewed on RxList: 3/3/2009


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