Impaired brain functions due to diazepam and meprobamate abuse in a 53-year-old-male.

The following case study demonstrates the important influence of diazepam and meprobamate on a patient's neuropsychological test performance. This article includes: a brief medical history and summary of previous physical examinations; brief description of the neuropsychological test battery; formulation of the original neuropsychological test findings; follow-up neuropsychological testing; and discussion. The profound interaction effect of these prescribed drugs revealed severe cognitive, memory, and motor function deficits in a 53-year-old male. These findings are in contrast to reports in the literature.