An open-label trial of L-5-hydroxytryptophan in subjects with romantic stress. Emanuele E, Bertona M, Minoretti P, Geroldi D. Clinical Trial 2010; 31(5): 663-666 PubMed PMID: 21178946 Keywords: 5-Hydroxytryptophan:administration & dosage, Adaptation, Psychological:drug effects, Adult, Antidepressive Agents, Second-Generation:administration & dosage, Austria, Blood Platelets:chemistry, Brain-Derived Neurotrophic Factor:blood, Courtship:psychology. Citation : This open-label trial assessed the clinical efficacy of L-5-hydroxytryptophan (5-HTP), a natural serotonin precursor, in nondepressed yo..... Read abstract Full text PDF