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a class of antidepressants similar to the tricyclic antidepressants and also related to the phenothiazine antipsychotics.
tetracyclic antidepressant(tĕt′rə-sī′klĭk, -sĭk′lĭk)
Any of a class of antidepressants, such as maprotiline, whose chemical structure includes four benzene rings.
Any of a class of antidepressant agents whose chemical structure has four fused rings. These drugs block the reuptake of norepinephrine and serotonin at nerve endings.
See also: antidepressant