Phillipson O, Baker J, Sebastianpillai F, Sheppard G, Brook P
Psychol Med. 1978 May;8(2):331-4. doi: 10.1017/s0033291700014380.
Plasma chlorpromazine measured by a gas chromatographic procedure was found to disappear rapidly during the first week after withdrawal of chlorpromazine treatment in a group of 17 chronically hospitalized patients. The drug or its metabolites were no longer measurable in plasma after 8 days.