in this efficient extraction and isocratic liquid-chromatographic procedure for measuring eight antidepressant drugs in serum ( amoxapine , 8-hydroxyamoxapine , doxepin , desmethyldoxepin , imipramine , desipramine , amitriptyline , and nortriptyline ) , they are extracted from serum as a group by use of disposable solid-phase cyanopropyl columns ;
C0003289
antidepressant drugs
C0013085
doxepin