myotonia

n. increased tone and contractility of a muscle, with slow or delayed relaxation. —myotonic adj.

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Psychology term of the day

February 25th 2025

mesoridazine

n. a conventional antipsychotic of the piperidine phenothiazine class. Mesoridazine is a low-potency agent that is a metabolic product of thioridazine. Like the latter drug, its use is associated with life-threatening disturbances in heart rhythm (prolongation of the Q-T interval potentially leading to torsades de pointes syndrome; see electrocardiographic effect). It should not be administered to individuals taking other drugs that prolong the Q-T interval or who have a history of heart rhythm disturbances, and it is appropriate for the treatment of schizophrenia only in individuals who have not responded to other antipsychotic agents. U.S. trade name: Serentil.