[Psychotic episode caused by prevention of malaria with mefloquine. A case report].

We report on a 41 year old woman, who after 750 mg mefloquine, a newer antimalarial agent, developed a psychosis with dizziness, confusion and delusions. The symptoms were more intensive and remained longer than hitherto reported in the literature. A total of 23 patients are known to have had psychiatric adverse effects under mefloquine. Psychotic episodes are undoubtedly though rarely associated with the intake of mefloquine.