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Last reviewed on RxList: 4/11/2016
Atgam Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Last reviewed on RxList 2/15/2016

Atgam (lymphocyte immune globulin, anti-thymocyte globulin [equine]) Sterile Solution is an immunosuppressant used to treat rejection of a kidney transplant as well as aplastic anemia. Common side effects of Atgam include fever, chills, rash, itching, hives, chest/back pain, joint pain, diarrhea, headache, nausea, vomiting, night sweats, dizziness, shortness of breath, low blood pressure (hypotension), and pain at the infusion site.

Talk to your doctor about your individual dosage recommendation of Atgam. Atgam must be administered under a doctor's supervision. Other drugs may interact with Atgam. Tell your doctor all medications you take. Do not take Atgam if you are pregnant. Exercise caution while taking Atgam and breastfeeding.

Our Atgam (lymphocyte immune globulin, anti-thymocyte globulin [equine]) Sterile Solution Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Atgam Professional Information


The most clinically significant adverse reactions are anaphylaxis, infection, thrombocytopenia, leukopenia, arthralgia, edema, bradycardia, and abnormal renal and liver function tests.

Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.

The safety of ATGAM has been evaluated in 367 patients with renal transplant and 109 patients with aplastic anemia.

The renal transplantation and aplastic anemia patients received a similar dosing regimen, and these data were pooled to obtain the frequencies listed in Tables 1 and 2 below.

The most commonly reported adverse reactions (occurring in greater than 10% of patients) are pyrexia, chills, rash, thrombocytopenia, leukopenia and arthralgia.

Table 1: Adverse Reactions Occurring in ≥ 1% of Patients who Received ATGAM

Adverse Reaction*,† ATGAM Frequency (%)
(N = 476)
Pyrexia 39.5
Chills 26.5
Rash 25.6
Thrombocytopenia 21.6
Leukopenia 17.9
Arthralgia 17.2
Urticaria 9.2
Headache 5.3
Pruritus 4.6
Nausea 4.2
Infection 3.4
Vomiting 3.4
Thrombophlebitis 3.2
Hypertension 2.9
Hypotension 2.9
Diarrhea 2.9
Abdominal pain upper 2.7
Chest pain 2.7
Infusion site pain 2.1
Edema 2.1
Bradycardia 1.5
Back pain 1.5
Lymphadenopathy 1.3
Arteriovenous fistula thrombosis 1.3
Dizziness 1.1
Dyspnea 1.1
Tachycardia 1.1
Liver function test abnormal 1.0
*Percentages are treatment-emergent all-causality events
†Medical Dictionary for Regulatory Activities (MedDRA) Preferred Terms

Table 2: Adverse Reactions Occurring in < 1% of Patients who Received ATGAM

Adverse Reaction*,† ATGAM Frequency (%)
(N = 476)
Convulsion 0.8
Pleural effusion 0.8
Night sweats 0.8
Serum sickness 0.6
Hyperglycemia 0.6
Stomatitis 0.6
Renal function test abnormal 0.6
Herpes simplex 0.4
Agitation 0.4
Hiccups 0.4
Proteinuria 0.4
Asthenia 0.4
Malaise 0.4
Wound dehiscence 0.4
Anaphylactic reaction 0.2
Encephalitis 0.2
Paresthesia 0.2
Renal artery thrombosis 0.2
Iliac vein occlusion 0.2
Laryngospasm 0.2
Pulmonary edema 0.2
Dermatitis allergic 0.2
Periorbital edema 0.2
Toxic epidermal necrolysis 0.2
*Percentages are treatment-emergent all-causality events
†Medical Dictionary for Regulatory Activities (MedDRA) Preferred Terms

Post-Marketing Experience

The following adverse reactions have been identified during post approval use of ATGAM. Because reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Infections and infestations: Hepatitis viral, Localized infection, Systemic infection

Blood and lymphatic system disorders: Anemia, Eosinophilia, Granulocytopenia, Hemolysis, Hemolytic anemia, Neutropenia, Pancytopenia

Psychiatric disorders: Confusional state, Disorientation

Nervous system disorders: Dyskinesia, Syncope, Tremor

Cardiac disorders: Cardiac failure congestive

Vascular disorders: Deep vein thrombosis, Vasculitis

Respiratory, thoracic and mediastinal disorders: Apnea, Cough, Epistaxis, Oropharyngeal pain

Gastrointestinal disorders: Abdominal pain, Gastrointestinal hemorrhage, Gastrointestinal perforation, Oral pain

Skin and subcutaneous tissue disorders: Hyperhidrosis

Musculoskeletal and connective tissue disorders: Flank pain, Muscle rigidity, Myalgia, Pain in extremity

Renal and urinary disorders: Kidney enlargement, Kidney rupture, Renal failure acute

Congenital, familial and genetic disorders: Aplasia

General disorders and administration site conditions: Infusion site erythema, Infusion site swelling, Pain

Read the entire FDA prescribing information for Atgam (Lymphocyte immune globulin)

Related Resources for Atgam

© Atgam Patient Information is supplied by Cerner Multum, Inc. and Atgam Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

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