Leflunomide is used in the treatment of ulcerative colitis, Crohn's disease, systemic lupus erythematosus, Wilson's disease, ankylosing spondylitis, psoriatic arthritis, rheumatoid arthritis, and type 2 diabetes mellitus.
How Leflunomide works Leflunomide inhibits the action of specific chemical messengers responsible for inflammation, swelling, and redness associated with certain autoimmune diseases. It targets the underlying disease process rather than merely alleviating the symptoms.
Common side effects of Leflunomide include nausea, headache, rash, diarrhea, respiratory tract infection, abnormal liver enzymes, and dyspepsia.