The effect of lithium on luteinizing hormone and testosterone in man.

Serum luteinizing hormone and testosterone were determined weekly during the course of a comparison of the effects of lithium versus placebo on impulsive aggressive behavior in 16-24 year-old male prisoners. The duration of drug treatment for each individual was up to 3 months. A significant reduction of serious agressive behavioral incidents occurred in the third month on lithium and was accompanied by a significant rise in serum luteinizing hormone, with no change in serum testosterone.