PMID: 6408670Jan 1, 1983Paper

A preliminary study of sex-related differences in prolactin responses to dopamine blockade and insulin hypoglycemia and in penfluridol plasma levels in schizophrenic patients

Psychopharmacology
R S NathanV Slotnick

Abstract

Twelve healthy chronic schizophrenic patients were treated with the long-acting oral dopamine (DA) receptor blocker penfluridol (100 mg orally) for 6 weeks. Plasma prolactin (PRL) levels were measured during insulin-tolerance tests (ITT) performed at the end of the drug-free period (7-10 days) and during weeks 1 and 6 of penfluridol treatment. Simultaneous PRL and penfluridol plasma levels were determined just prior to, and at 8, 72 and 120 h after penfluridol administration during weeks 1, 5, and 6. During penfluridol treatment women (N = 4) had a greater increase in their maximal PRL increments after ITT as compared to the men (N = 8). Analyses of (peak) plasma penfluridol and PRL concentrations 8 h after penfluridol administration revealed a trend towards lower plasma penfluridol levels during weeks 5 and 6 and significantly higher PRL levels in women compared to men during weeks 1 (P less than 0.01), 5 (P less than 0.02), and 6 (P less than 0.02). The consistent sex-related differences in the PRL responses to DA blockade, and to insulin-induced hypoglycemia and in the penfluridol plasma levels in our study support the view that sex-related changes need to be considered not only in the hormonal responses to various pharmacol...Continue Reading

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Citations

Dec 26, 2008·Clinical Pharmacology and Therapeutics·L E FribergM O Karlsson
Mar 16, 2007·Acta Psychiatrica Scandinavica·J EberhardS Levander
Jan 29, 2017·Expert Opinion on Pharmacotherapy·Bettina LangeJ Malte Bumb

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