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Antithymocyte globulin

Immunosuppressant

Also known as THYMOGLOBULIN, Antithymocyte immunoglobulin (rabbit)

Immunosuppressant
CDSCO approved
EXCRETION
not curated
INTERACTIONS
none in our sources
PREGNANCY
Manufacturer advises use only if potential benefit outweighs risk—no information available.
FDA category + note

Mechanism

Antithymocyte globulin (rabbit) binds to T lymphocytes and depletes them. It contains antibodies against many CD antigens as well as HLA antigens. This action leads to potent immunosuppression, useful in preventing and treating organ rejection.

Indications

Prophylaxis of organ rejection in renal allograft recipientsTreatment of corticosteroid-resistant allograft rejection in renal transplantationSuppress acute allograft rejection episodes, especially in steroid-resistant casesInduction regimensprevention of organ transplant rejectiontreatment of organ transplant rejectionaplastic anemia

Dosing

Adult
For prophylaxis of organ rejection in renal allograft recipients: 1–2.5 mg/kg daily for 3–5 days, given over at least 6 hours by intravenous infusion. For treatment of corticosteroid-resistant allograft rejection in renal transplantation: 1–1.5 mg/kg daily for 3–9 days, given over at least 6 hours by intravenous infusion.…

Contraindications

  • Infection

Side effects

Common
ChillsDiarrhoeaDysphagiaDyspnoeaFeverHypotensionInfectionLymphopeniaMyalgiaNauseaNeutropeniaReactivation of infectionSkin reactionsThrombocytopeniaVomitingleukopenia
Serious
  • Cytokine release syndrome
  • Hepatic disorders
  • Hypersensitivity
  • Infusion related reaction
  • Anaphylactic reactions
  • Serum sickness
  • Opportunistic infection
  • Malignant neoplasm
  • Secondary malignancy
  • Sepsis

Pregnancy & lactation

Pregnancy

Manufacturer advises use only if potential benefit outweighs risk—no information available.

Lactation

Manufacturer advises avoid—no information available.

Related guidelines

Other Immunosuppressant drugs

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Sources: KD Tripathi 7e, Goodman & Gilman 14e, Katzung, Nelson·Verified: 2026-05-13 · House clinical team