# OnCo record five-htp-supplements (technology). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/technologies/five-htp-supplements/>
  a schema:MedicalTherapy ;
  onco:kind "technology" ;
  schema:identifier "five-htp-supplements" ;
  schema:name "5-HTP (5-hydroxytryptophan)"@en ;
  schema:alternateName "5-HTP"@en, "L-5-hydroxytryptophan"@en, "Griffonia seed extract"@en ;
  schema:description "5-HTP is sold for sleep, mood and appetite. Trials are small and mixed and it did not help hot flushes. It matters for two groups: people on antidepressants, where it can add to serotonin and cause a dangerous reaction, and people with neuroendocrine tumours, because it distorts the urine test used to monitor them."@en ;
  schema:url <https://onco.cc/technologies/five-htp-supplements/> ;
  schema:dateModified "2026-11-04"^^xsd:date ;
  schema:citation <https://www.mskcc.org/cancer-care/integrative-medicine/herbs/5-htp-01> ;
  onco:status "phase-2" ;
  onco:tag "complementary", "supportive-care", "evidence:insufficient" ;
  onco:related <https://onco.cc/technologies/sam-e-supplements/>, <https://onco.cc/technologies/l-theanine-supplements/>, <https://onco.cc/technologies/st-johns-wort-interaction/> ;
  onco:cancers <https://onco.cc/cancers/neuroendocrine/> ;
  onco:sections <https://onco.cc/fronts/supportive-care/> ;
  onco:technologies <https://onco.cc/technologies/integrative-oncology/>, <https://onco.cc/technologies/dietary-supplements-treatment-interactions/>, <https://onco.cc/technologies/psycho-oncology/> ;
  onco:terms <https://onco.cc/terms/chromogranin-a/> ;
  onco:bottlenecks <https://onco.cc/bottlenecks/b-toxicity-qol/> .