A comparative study of T-61 and pentobarbital for euthanasia of dogs.

A comparative study of T-61 and double-strength pentobarbital for euthanasia of dogs was performed. Effects on EEG, ECG, arterial blood pressure, and respiration were monitored, and time to collapse was measured. In most respects, the effects of the 2 agents were similar; however, 3 of 12 dogs given pentobarbital resumed respiration and cardiac function. None of 9 dogs given T-61 evidenced signs of recovery.