Product Description

Ritulasta is a genetically engineered chimeric murine/human monoclonal antibody directed against the CD20 antigen found on the surface of normal and malignant B lymphocytes. The antibody is an IgG1 kappa immunoglobulin containing murine light and heavy-chain variable region sequences and human constant region sequences. Ritulasta is composed of two heavy chains of 451 amino acids and two light chains of 231 amino acids.


  • Non-Hodgkin's lymphoma
  • Chronic lymphocytic leukemia
  • Rheumatoid Arthritis
  • Granulomatosis with Polyangiitis (GPA) and Microscopic Polyangiitis


  • Store at 2 to 8°C
  • Protect from light
  • Do not freeze


30 months from the date of manufacturing