Hydroxychloroquine 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 Hydroxychloroquine Works Hydroxychloroquine blocks the action of specific chemical messengers that contribute to inflammation, swelling, and redness associated with certain autoimmune diseases. It suppresses the underlying disease process rather than merely treating the symptoms.
Common side effects of Hydroxychloroquine include blurred vision, headache, abdominal pain, decreased appetite, skin rash, itching, affect lability, diarrhea, vomiting, and nausea.