Intermittent versus continuous neuroleptic treatment in a rat model.
Eur J Pharmacol
; 190(3): 275-86, 1990 Nov 13.
Article
em En
| MEDLINE
| ID: mdl-2272366
ABSTRACT
The treatment schedule for neuroleptic therapy is of relevance when evaluating the development of side-effects. Seventy-five rats were treated discontinuously or continuously with the predominantly dopamine D2 receptor blocker haloperidol or the combined dopamine D1/D2 receptor blocker zuclopenthixol for 15 weeks. During and after treatment, a broad spectrum of behavioural parameters including vacuous chewing movements and tongue protrusions were observed. Discontinuous neuroleptic treatment as opposed to continuous neuroleptic treatment produced a significant long-lasting increase in oral activity. The changes were most pronounced in haloperidol-treated rats. The differences observed may have methodological implications for animal models of neuroleptic-induced movement disorders. Our findings are consistent with the hypothesis that pharmacological sensitization to the dyskinetic side-effects of neuroleptics develops when the drug effect is allowed to wear off between repeated administrations.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Comportamento Animal
/
Clopentixol
/
Haloperidol
/
Mastigação
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Eur J Pharmacol
Ano de publicação:
1990
Tipo de documento:
Article
País de afiliação:
Dinamarca