ANTI-THYMOCYTE GLOBULIN (horse)

(Atgam = antithymocyte globulin = lymphocyte immune globulin [equine source])

Standard Prescription

    Atgam __mg IV Q__H (__mg/kg/24hr) x __ days

    Dosages

    Aplastic Anemia:
    40 mg/kg/dose hr IV once daily x 4 days.

    Hematopoietic Stem Cell Transplant:
    20-40 mg/kg/dose hr IV once daily per protocol.

    Mechanism of Action

    Immunosuppressant; purified, pasteurized, horse immune globulin

    Forms Supplied

    injection: 250 mg/5 mL amp. (Atgam®)

    See separate monograph for Thymoglobuline® = anti-human thymocyte globulin [rabbit source]

    Comments

    Not to be confused with rabbit anti-thymocyte globulin, brand name Thymoglobuline

    Intradermal sensitivity testing (5 mcg/dose intradermally with contralateral saline control) is recommended prior to the administration of the initial dose of ATG, but may not be predictive of future sensitivity reactions

    Pre-treatment with acetaminophen, steroids and antihistamines may reduce the incidence of rigors, fever, rashes.

    See separate monograph for Thymoglobuline® = anti-human thymocyte globulin [rabbit source]

    References

    32, 74, 514

    Last Edited

    2021-11-08 19:28:11