the 4-aminoquinolines chloroquine ( cq ) and hydroxychloroquine ( hcq ) , and previously the 9-aminoacridine mepacrine ( quinacrine ) ( mp ) , have been widely used in the treatment of inflammatory disorders such as rheumatoid arthritis and systemic lupus erythematosus .
C0008269
chloroquine
C0003873
rheumatoid arthritis