From the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), February 2008.
"Antirheumatic, Antimalarial Treatment Reduces Diabetes Risk in People With Rheumatoid Arthritis":
Researchers partly funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) recently found that hydroxychloroquine, a medication used to treat rheumatic diseases and malaria, reduced the incidence of diabetes in people with rheumatoid arthritis (RA). RA is an inflammatory disease that causes pain, swelling, stiffness and loss of function in the joints.
See the full archived article at https://www.archive.niams.nih.gov/spotlight-on-research/2008/antirheumatic-antimalarial-treatment-rheumatoid-arthritis