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PIPERIDYLIDENE DERIVATIVES OF XANTHENE, THIOXANTHENE AND DIBENZOXEPINE AND PHARMACEUTICAL COMPOSITIONS HAVING ANTIPSYCHOTIC ACTIVITY WITHOUT EXTRAPYRAMIDAL SYMPTOMS CONTAINING THEM
PIPERIDYLIDENE DERIVATIVES OF XANTHENE, THIOXANTHENE AND DIBENZOXEPINE AND PHARMACEUTICAL COMPOSITIONS HAVING ANTIPSYCHOTIC ACTIVITY WITHOUT EXTRAPYRAMIDAL SYMPTOMS CONTAINING THEM
Pharmaceutical compositions and a method of producing antipsychotic activity without extrapyramidial symptoms by administering internally a nontoxic effective quantity of a tricyclic piperidylidene derivative to an animal host. The active ingredients are prepared from an appropriately substituted xanthone, thioxanthone or dibenxoxepinons by reaction with an N-substituted piperidyl magnesium halide. Certain of the piperidylidene derivatives are novel compounds per se.
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