Promethazine toxicity in a seven-month-old Doberman pinscher.

A 7-mo-old female Doberman Pinscher undergoing antibiotic treatment for tonsillitis was presented in near collapse with markedly low blood pressure, tachycardia, dilatation of pupils (non-responsive to light), and gastrointestinal distress. Since the owner could provide no history of significant toxin exposure, general supportive and non-specific toxicologic treatment protocols were initiated. Within 4 h marked improvement was observed. The owner's wife revealed that promethazine suppositories had been administered at a toxic level to control the vomition accompanying the tonsillitis.