title: Neuroleptic drug level monitoring in psychiatry: focus on radioreceptor assay techniques.
abstract: Preliminary studies with the radioreceptor assay for neuroleptics suggest several advantages of this technique. Consistent with results obtained with other techniques, it is obvious that there is variation among individuals in terms of the serum levels obtained on given oral doses of neuroleptics; in addition, total daily dose correlates poorly with serum levels. The radioreceptor assay technique, however, is relatively uncomplicated and inexpensive and relies on methods that are commonly used in general hospital laboratories. Unlike gas chromatography/mass spectrometry, gas-liquid chromatography, and even radioimmunoassay--which are highly discriminative--the radioreceptor assay detects both parent drugs and active metabolites of virtually all classes of neuroleptics on the basis of their presumed physiologic mechanism of action.
mesh_terms: D014150:Antipsychotic Agents / Q000009:adverse effects / Q000097:blood* / Q000627:therapeutic use; D005476:Fluphenazine / Q000097:blood; D006801:Humans; D001523:Mental Disorders / Q000188:drug therapy*; D009069:Movement Disorders / Q000628:therapy; D011869:Radioligand Assay
chemical_list: D014150:Antipsychotic Agents; D005476:Fluphenazine