Abstract
Neuropharmacological studies were conducted in mice with a number of hetero[2,1]benzothiazepine derivatives, analogues of tianeptine. Seven of the 12 compounds under study potentiated the actions of 5-hydroxytryptophan (5-HTP, 50 mg/kg i.p.) and/or antagonised the hypothermia induced by high doses of apomorphine. Moreover, some of them inhibited the head twitches induced by 5-HTP (250 mg/kg i.p.) and the stereotyped behaviour and/or climbing behaviour of low doses of apomorphine. These compounds also produced a slight inhibition of exploratory behaviour in the holeboard test. On the other hand, no significant muscle relaxant, anticonvulsant and anxiolytic activities were observed at any dose employed. Together, these data suggest that some of the compounds under study exert antidepressant and neuroleptic effects in mice with no muscle relaxant, anxiolytic and anticonvulsant activities.
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