Systemic cyclopentolate (Cyclogyl) toxicity in the newborn infant.

Two cases of atropine-like toxicity following the ocular administration of cyclopentolate hydrochloride (Cyclogyl) in a pair of premature Negro twins are reported. The symptoms were confined to the gastrointestinal tract with vomiting, distension, and ileus. Both infants apparently recovered from the initial episode, but one of the twins subsequently died from necrotizing enterocolitis complicated by an intestinal perforation. In both children systemic concentrations of the drug supported the clinical impression of Cyclogyl intoxication.