AskDefine | Define tyramine

Dictionary Definition

tyramine n : amino acid derived from tyrosine; has a sympathomimetic action; found in chocolate and cola drinks and ripe cheese and beer; "patients taking MAOIs should avoid foods containing tyramine"

User Contributed Dictionary



  1. a phenolic amine, 4-hydroxy-phenethylamine, derived from the amino acid tyrosine, found in various foodstuffs and used as a sympathomimetic agent

Extensive Definition

In organic chemistry tyramine (4-hydroxy-phenethylamine, para-tyramine, p-tyramine) is a monoamine compound derived from the amino acid tyrosine. Reports on the tyramine-migraine link have been both affirmed and denied. A recent review article found that all past studies affirming a migraine-tyramine connection were scientifically inconclusive, and noted several studies showing no connection. Two studies validated as scientifically sound reported no connection in the population evaluated.
tyramine in Catalan: Tiramina
tyramine in German: Tyramin
tyramine in French: Tyramine
tyramine in Italian: Tiramina
tyramine in Japanese: チラミン
tyramine in Polish: Tyramina
tyramine in Portuguese: Tiramina
tyramine in Russian: Тирамин
tyramine in Finnish: Tyramiini
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