Baricitinib, an oral inhibitor of JAK kinases 1 and 2, is commonly used in adults to treat moderate to severe active rheumatoid arthritis (RA). For patients with rheumatoid arthritis who have not previously used biological DMARDs drugs
Off white or white crystalline powder, odorless and tasteless, slightly soluble in water, insoluble in ethanol or acetone, and easily soluble in sodium hydroxide test solution.