Browsing by Author "Fleckenstein, R."
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Contreras, E.; Quijada, L.; Germany, A.; Fleckenstein, R.; Hernández, A. (1993)1. A single dose of pentazocine induces cross-tolerance the analgesic effects of the kappa agonist U 50488H. Tolerance is observed by means of the hot plate test or by the i.p. administration of acetic acid 6 or 24 hr after ...