Abstract
Tetrahydroisoxazolopyridinol (THIP), a GABA receptor agonist, γ-acetylenic-GABA(GAG) and γ-vinyl-GABA(GVG), two GABA transaminase inhibitors were given in single parenteral doses to three Cebus apella monkeys with persistent dyskinetic movements induced by earlier long-term administration of haloperidol. High doses of THIP temporarily abolished dyskinesias but also caused bradykinesia, ataxia, dystonia and myoclonic jerks. GAG and GVG reduced dyskinesias to a lesser extent and with fewer side effects. Whether the observed antidyskinetic effect is secondary to the concomitant general toxic effects or if these drugs have a specific antidyskinetic action remains an open question.
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Andersson, U., Häggström, JE. GABA agonists in cebus monkeys with neuroleptic-induced persistent dyskinesias. Psychopharmacology 94, 298–301 (1988). https://doi.org/10.1007/BF00174678
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DOI: https://doi.org/10.1007/BF00174678