Abstract
Quipazine, (2-(1-piperazinyl)quinoline), is comparable to the tricyclic antidepressants in many of its pharmacological effects. Common properties include the ability to antagonize reserpine and tetrabenazine sedation in mice and rats, to reverse reserpine hypothermia in rats and to inhibit selectively the mouse-killing behavior of rats. In all these actions, quipazine is approximately equipotent with imipramine, desipramine and amitriptyline. Quipazine is far less effective than imipramine in potentiating the locomotor stimulation elicited by d-amphetamine. Quipazine differs from tricyclic antidepressants in that it does not enhance responses induced by exogenous or endogenous norepinephrine and does not block the effects of indirectly acting sympathomimetic amines. Furthermore, quipazine, unlike imipramine, counteracts tetrabenazine induced sedation in catecholamine depleted animals. These findings suggest that the pharmacological actions of quipazine do not involve adrenergic mechanisms.
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A preliminary report of this work was presented at the II International Seminar on Psychophysiology and Psychopharmacology, Mexico City, Dec. 3, 1969.
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Rodríguez, R., Pardo, E.G. Quipazine, a new type of antidepressant agent. Psychopharmacologia 21, 89–100 (1971). https://doi.org/10.1007/BF00404000
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DOI: https://doi.org/10.1007/BF00404000