[Psychopathological phenomena in long-term follow-up of acute psychosis after preventive mefloquinine (Lariam) administration].

There are some reports about neuropsychiatric side effects associated with the intake of the antimalarial drug mefloquine. We report a long-term observation of a patient suffering for his first time on an acute psychosis under mefloquine prophylaxis. Mefloquine's role as a drug possibly inducing psychosis and the influence of vulnerability therefore will be discussed.