There is one condition associated with mania, and not unfrequently with senile dementia with excitement, which is most annoying—the propensity to the tearing of wearing apparel, blankets, &c. When appearing as a symptom of chronic mania it is frequently wilful, and is effectually put a stop to by single large doses of hyoscyamine. In one case in the asylum this mode of treatment is, when occasion requires it, particularly successful. The patient, either in wanton mischief, or in retaliation for some imagined slight or necessary exercise of discipline, either tears blankets or rugs to shreds, or cunningly strips off narrow pieces from their edges, so that for a time his ravages may go on unobserved. Three-quarters of a grain of hyoscyamine invariably put a stop to the intense and aggressive excitement, to which follows the detection of his wantonness, and the dose keeps him under control for about a month or six weeks, when the memory of his prostration requires to be revived by a repetition of it.
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