Altintas, Ebru2019-09-302019-09-3020151018-8681http://www.dusunenadamdergisi.org/ing/DergiPdf/DUSUNEN_ADAM_DERGISI_37e5d02b085e4ced9cf49877da99c0de.pdfhttp://hdl.handle.net/11727/4021Chloroquine and its derivative hydroxychloroquine (HCQ) have been used for acute and prophilactic treatment of malaria for most of the last century. HCQ has anti-inflammatory, antilipidemic and antithrombotic effects and in recent years has become an important drug for treating rheumatoid arthritis ( RA). In the literature, antimalarial-induced psychosis has been reported in a small number of cases; however, we did not find any case related with HCQ-induced psychosis in rheumatoid arthritis. We want to report a 73-year-old female RA patient without a previous history of psychosis who developed psychosis after use of HCQ. HCQ is being increasingly prescribed in autoimmune diseases. Clinicians need to be aware of psychosis as a rare but debilitating side effect.enginfo:eu-repo/semantics/openAccessHydroxychloroquinepsychosisside-effectarticle2843693730004214427000102-s2.0-84953714394