Common rheumatoid arthritis treatment may be effective in treating immunoglobulin G4-related disease

Rituximab (Rituxan®) -- a drug commonly used rheumatoid arthritis, granulomatosis with polyangiitis (formerly Wegener's), and certain types of cancers -- may be a safe and effective treatment for immunoglobulin G4-related disease (commonly called IgG4-RD), according to new research.