The British Journal of Psychiatry 153: 382-384 (1988)
© 1988 The Royal College of Psychiatrists
Plasma levels of fluphenazine decanoate. Effects of site of injection, massage and muscle activity
SD Soni, D Wiles, AA Schiff and JS Bamrah
Psychiatric Research Department, Salford Health Authority, Prestwich Hospital, Manchester.
Depot neuroleptics are now commonly used for maintenance therapy of
schizophrenia. Their physicochemical composition makes them ideal for such
use because they are long-acting and show stable blood levels for prolonged
periods. Their absorption from the site of injection may, however, be
affected by local muscle factors. This paper describes three such factors
in relation to fluphenazine decanoate: varying the site of injection;
massage of the injection site; and effects of muscular exercise. Our
results suggest that fluphenazine pharmacokinetics are not significantly
affected by any of these factors.