Pentobarbital sodium, commonly known by its brand name Nembutal, is a short-acting barbiturate that has been used in medical practice since the early 20th century. Chemically, it is 5-ethyl-5-(1-methylbutyl)barbituric acid sodium salt, a white crystalline powder that is highly soluble in water and alcohol. When formulated into capsules for oral administration, it is typically supplied […]