the detection limits of amitriptyline , nortriptyline , 10-hydroxy ( e ) amitriptyline , 10-hydroxy ( e ) nortriptyline , and 10-hydroxy ( z ) nortriptyline were slightly less than 0.5 ng/ml in 1.0-ml plasma samples .
C0002600
amitriptyline
C0028420
nortriptyline