High-performance liquid chromatographic analysis of verapamil. II. Simultaneous quantitation of verapamil and its active metabolite, norverapamil.
D002851:Chromatography, High Pressure Liquid / Q000379:methods; D006801:Humans; D014700:Verapamil / Q000031:analogs & derivatives* / Q000097:blood* / Q000627:therapeutic use
C016904:norverapamil; D014700:Verapamil