Four cases of the Lesch Nyhan syndrome found in the Tokyo area were given L 5 hydroxytryptophan orally. L 5 hydroxy tryptophan relieved self mutilation effectively without causing any side effects. However this substance did not alleviate…
Four patients with Lesch Nyhan disease were treated with L 5 hydroxytryptophan, alone, or in combination with carbidopa, and their effect on self mutilatory behavior was compared to that observed during periods in which placebo was administered.…