[Responsibility of psychotropic drugs in road accidents].

Serum concentrations of psychotropic drugs were measured in 363 drivers injured in road accidents and admitted to the emergency department of Angers regional university hospital. The figures obtained were correlated to the presumed responsibility of each driver in the accident. Benzodiazepines and phenobarbitone were found in the serum of 39 drivers, and responsibility was significantly increased in this group.