| Drug Name | Tryptophan | 
							
								| Drug ID | BADD_D02639 | 
							
								| Description | An essential amino acid that is necessary for normal growth in infants and for nitrogen balance in adults. It is a precursor of indole alkaloids in plants. It is a precursor of serotonin (hence its use as an antidepressant and sleep aid). It can be a precursor to niacin, albeit inefficiently, in mammals. | 
							
								| Indications and Usage | Tryptophan may be useful in increasing serotonin production, promoting healthy sleep, managing depression by enhancing mental and emotional well-being, managing pain tolerance, and managing weight. | 
							
								| Marketing Status | approved; nutraceutical; withdrawn | 
				
							
								| ATC Code | N06AX02 | 
							
								| DrugBank ID | DB00150 | 
							
								| KEGG ID | D00020 | 
							
								| MeSH ID | D014364 | 
							
								| PubChem ID | 6305 | 
							
								| TTD Drug ID | D05EJG | 
							
								| NDC Product Code | 43742-0770 | 
							
								| UNII | 8DUH1N11BX | 
							
								| Synonyms | Tryptophan | L-Tryptophan | L Tryptophan | Levotryptophan | Ardeydorm | Ardeytropin | L-Tryptophan-ratiopharm | L Tryptophan ratiopharm | ratio-Tryptophan | ratio Tryptophan | Tryptophan Metabolism Alterations | PMS-Tryptophan | PMS Tryptophan | Trofan | Tryptacin | Tryptan | Optimax | Lyphan | Naturruhe |