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  2. Eosinophilia–myalgia syndrome - Wikipedia

    en.wikipedia.org/wiki/Eosinophilia–myalgia...

    Eosinophilia–myalgia syndrome is a rare, sometimes fatal neurological condition linked to the ingestion of the dietary supplement L-tryptophan. [1] [2] The risk of developing EMS increases with larger doses of tryptophan and increasing age. [3]

  3. Tryptophan - Wikipedia

    en.wikipedia.org/wiki/Tryptophan

    Tryptophan ball and stick model spinning. Tryptophan (symbol Trp or W) [3] is an α-amino acid that is used in the biosynthesis of proteins.Tryptophan contains an α-amino group, an α-carboxylic acid group, and a side chain indole, making it a polar molecule with a non-polar aromatic beta carbon substituent.

  4. 5-Hydroxytryptophan - Wikipedia

    en.wikipedia.org/wiki/5-Hydroxytryptophan

    5-HTP is produced from the amino acid tryptophan through the action of the enzyme tryptophan hydroxylase. Tryptophan hydroxylase is one of the biopterin-dependent aromatic amino acid hydroxylases. Production of 5-HTP is the rate-limiting step in 5-HT (serotonin) synthesis. 5-HTP is normally rapidly converted to 5-HT by amino acid decarboxylase. [1]

  5. Kobayashi factory searched over deaths possibly linked to ...

    www.aol.com/news/kobayashi-factory-searched-over...

    TOKYO (Reuters) -Japanese health officials searched a Kobayashi Pharmaceutical factory on Saturday after the drugmaker reported five deaths possibly linked to dietary supplements using red yeast ...

  6. List of withdrawn drugs - Wikipedia

    en.wikipedia.org/wiki/List_of_withdrawn_drugs

    Hepatotoxicity, dermatological side effects, and abuse potential. [7] Aminopyrine: 1999 France, Thailand Risk of agranulocytosis and severe acne. [3] Amobarbital: 1980 Norway Risk of barbiturate toxicity. [3] Amoproxan: 1970 France Dermatologic and ophthalmic toxicity. [3] Anagestone acetate: 1969 Germany Animal carcinogenicity. [3] Antrafenine ...

  7. γ-Hydroxybutyric acid - Wikipedia

    en.wikipedia.org/wiki/Γ-hydroxybutyric_acid

    In 2001 tryptophan supplement sales were allowed to resume, and in 2005 the FDA ban on tryptophan supplement importation was lifted. [125] By November 1989 57 cases of illness caused by the GHB supplements had been reported to the Centers for Disease Control and Prevention , with people having taken up to three teaspoons of GHB; there were no ...

  8. Hypertryptophanemia - Wikipedia

    en.wikipedia.org/wiki/Hypertryptophanemia

    A number of abnormalities and symptoms have been observed with hypertryptophanemia. [citation needed]Musculoskeletal effects include: joint contractures of the elbows and interphalangeal joints of the fingers and thumbs (specifically the distal phalanges), pes planus (fallen arches), an ulnar drift affecting the fingers of both hands (an unusual, yet correctible feature where the fingers slant ...

  9. Indoxyl sulfate - Wikipedia

    en.wikipedia.org/wiki/Indoxyl_sulfate

    Indoxyl sulfate, also known as 3-indoxylsulfate and 3-indoxylsulfuric acid, is a metabolite of dietary L-tryptophan that acts as a cardiotoxin and uremic toxin. [1] [2] [3] High concentrations of indoxyl sulfate in blood plasma are known to be associated with the development and progression of chronic kidney disease and vascular disease in humans.