Dipyrone (metamizole) metabolites interfere with HPLC analysis of plasma catecholamines but not with the determination of urinary catecholamines.
Müssig
Karsten
K
Pfäfflin
Albrecht
A
Häring
Hans-Ulrich
HU
Schleicher
Erwin D
ED
D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage / Q000378:metabolism*; D002395:Catecholamines / Q000097:blood* / Q000652:urine*; D002851:Chromatography, High Pressure Liquid; D004177:Dipyrone / Q000008:administration & dosage / Q000378:metabolism*; D004298:Dopamine / Q000031:analogs & derivatives; D006801:Humans; D007202:Indicators and Reagents
D000894:Anti-Inflammatory Agents, Non-Steroidal; D002395:Catecholamines; D007202:Indicators and Reagents; C022133:3,4-dihydroxybenzylamine; D004177:Dipyrone; D004298:Dopamine