Pentobarbital sodium is a short-acting barbiturate belonging to the sedative-hypnotic drug class. It enhances the activity of GABA-A receptors, producing CNS depression ranging from sedation to deep anesthesia. It has been used for many decades in human and veterinary medicine. Pentobarbital: This CNS-depressant effect makes it effective for anesthesia, seizure control, and—at very high doses—euthanasia. … Continue reading About