Tryptophan and 5 hydroxytryptophan for depression PubMed
Abstract Background 5 Hydroxytryptophan 5 HTP and tryptophan are so called natural alternatives to traditional antidepressants used to treat unipolar depression and dysthymia Objectives To determine whether 5 HTP and tryptophan are more effective than placebo and whether they are safe to use to treat depressive disorders in adults