Factitious anisocoria and orthostatic hypotension.

A 30-year-old woman employed by a veterinarian had many episodes of syncope. At presentation, she had anisocoria and premature ventricular beats. Hemodynamic workup revealed only moderate peripheral venous pooling. The circumstances of the fainting spells and eye examination led to the identification of medications which, if taken surreptitiously, will induce the perplexing clinical picture which the patient presented.