Skip Navigation


Active Ingredient:

information from selected non-manufacturer sources


Name Tryptophan
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. [MeSH]
Related Names/Sources L-Tryptophan
Related Brands Brands that contain this ingredient
Reference Links Uses (in humans)
   Tryptophan   [ClinicalTrials.gov]
   Clinical Trial Literature  [PubMed]
   Effectiveness Literature  [PubMed]
   Administration Literature  [PubMed]
   Adverse Effects (in humans)
   Adverse Effects Literature  [PubMed]
   Poisoning Literature  [PubMed]
   Mechanism of Action
   Actions  [PubMed]
   Kinetics  [PubMed]
Last updated: 24 October 2007