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RX BIN: 015558
Group ID: DDN6600
Card Holder ID: DDN6600

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2018 Price of Sylvant



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Siltuximab volume of distribution

Based on population pharmacokinetic analysis, the central volume of distribution in a male subject with body weight of 70 kg is 4.5 L.

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What is Siltuximab

Siltuximab is a chimeric (human-mouse) monoclonal immunoglobulin G1-kappa antibody produced in a Chinese hamster ovary (CHO) cell line by recombinant DNA technology. Siltuximab prevents the binding of IL-6 to soluble and membrane-bound IL-6 receptors by forming high affinity complexes with human interleukin-6 (IL-6). Its use is indicated for the treatment of adult patients with multicentric Castleman’s disease (MCD) who are human immunodeficiency virus (HIV) negative and human herpesvirus-8 (HHV-8) negative. MCD is a rare blood disorder caused by dysregulated IL-6 production, proliferation of lymphocytes, and subsequent enlargement of the lymph nodes. It is administered as a 1 hour intravenous infusion every 3 weeks.

Siltuximab mechanism of action

Siltuximab complexes with human IL-6 and prevents binding to soluble and membrane-bound IL-6 receptors, thereby inhibiting the proliferation of lymphocytes.

Dosage forms of Siltuximab

Sylvant100mg1 vial$935
Sylvant400mg1 vial$3,723
Prescription Generics


International Brands




Janssen Inc

CAS number






Affected organisms

Indication of Siltuximab

Siltuximab is indicated for the treatment of patients with multicentric Castleman’s disease (MCD) who are human immunodeficiency virus (HIV) negative and human herpesvirus-8 (HHV-8) negative. Siltuximab did not bind to virally produced IL-6 in a nonclinical study and was therefore not studied in patients with MCD who are HIV or HHV-8 positive.

Toxicity of Siltuximab

The most common side effects that occurred during siltuximab treatment were pruritis, increased weight, rash, hyperuricemia, and upper respiratory tract infection. Siltuximab should not be administered to patients with severe infections as it may mask signs and symptoms of acute inflammation including suppression of fever and acute phase reactants such as C-reactive protein (CRP). Gastrointestinal perforation has been reported in clinical trials, therefore use with caution in patients who may be at increased risk for GI perforation.

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