DRUG SUPPLIED DOSE COMMENTS
ANTI-THYMOCYTE GLOBULIN (horse) (Paeds)
(Atgam = antithymocyte globulin = lymphocyte immune globulin [equine source])

Mechanism of action:

Immunosuppressant; purified, pasteurized, horse immune globulin



Ref: 32, 74, 514



Last update: 2021-11-08
injection: 250 mg/5 mL amp. (Atgam®)

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


Standard Prescription:

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