Biologically Active Substance
tryptophan Audio
tryp·to·phan [ trip-tuh-fan ]
Brand Names:
Aminosyn 10%, Sulfite-Free; Aminosyn 3.5 % M, Sulfite Free; Aminosyn 7 % with Electrolytes, Sulfite-Free; Aminosyn 8.5 % with Electrolytes, Sulfite-Free; Aminosyn 8.5%, Sulfite-Free; Aminosyn II 10 %; Aminosyn II 15%; Aminosyn II 7 %, Sulfite-Free; Aminosyn II 8.5 % with Electrolytes, Sulfite-Free; Aminosyn II 8.5 %, Sulfite-Free; Aminosyn-HBC 7 %, Sulfite-Free; Aminosyn-PF 10 %, Sulfite-Free; Aminosyn-PF 7%; Aminosyn-RF 5.2 %, Sulfite-Free; Clinimix 2.75/5; Clinimix 4.25/10; Clinimix 4.25/20; Clinimix 4.25/25; Clinimix 4.25/5; Clinimix 5/15; Clinimix 5/20; Clinimix 5/25; Clinimix E 2.75/10; Clinimix E 2.75/5; Clinimix E 4.25/10; Clinimix E 4.25/25; Clinimix E 4.25/5; Clinimix E 5/15; Clinimix E 5/20; Clinimix E 5/25; Clinisol 15; FreAmine 6.9; Freamine III 10; Hepatamine 8; Nephramine; Novamine 15%; Plenamine; PremaSol; ProcalAmine 3; Prosol; Restone; Somnicin; Travasol 10; Trophamine 10 %; Trophamine 6 %
Effect:
Increased Serotonin Production
May Treat:
Depression; Pain; Sleep Initiation and Maintenance Disorders
More Information:
ChemID; DrugBank; DailyMed; PDR
Definitions related to tryptophan:
  • Amino acid with side chain -CH2C8H6N.
    CRCH Nutrition Terminology
    Cancer Research Center of Hawaii, University of Hawaii, 2021
  • 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.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Essential amino acid necessary for normal growth in infants, nitrogen balance in adults; seretonin precursor.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • The least plentiful of all 22 amino acids and an essential amino acid in humans (provided by food), Tryptophan is found in most proteins and a precursor of serotonin. Tryptophan is converted to 5-hydroxy-tryptophan (5-HTP), converted in turn to serotonin, a neurotransmitter essential in regulating appetite, sleep, mood, and pain. Tryptophan is a natural sedative and present in dairy products, meats, brown rice, fish, and soybeans. (NCI04)
    NCI
    U.S. National Cancer Institute, 2021
Try this search on: Farlex, Merriam-Webster, Oxford Dictionary, or Wordnik

This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.