HIAA; 5-hydroxyindole acetic acid; Serotonin metabolite
There are no risks.
Drugs that can increase 5-HIAA measurements include acetanilid, phenacetin, glyceryl guaiacolate (found in many cough syrups), methocarbamol, and reserpine.
Drugs that can decrease 5-HIAA measurements include chlorpromazine, heparin, imipramine, isoniazid, levodopa, monoamine oxidase inhibitors, methenamine, methyl...
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