APA Dictionary of Psychology

n. a chemical analog of quinine used in the treatment of malarial infections and prevention of malaria. It has been associated with seizures or psychological disturbances, including sleep disturbance, depression, panic attacks, and psychotic symptoms. Although such reactions are rare, mefloquine should not be taken by individuals with histories of depression, generalized anxiety disorder, psychosis, or seizure disorders. U.S. trade name: Lariam.