However, its use for capital punishment remains a widely controversial topic. Barbiturates are classified according to the duration of their action, and pentobarbital belongs to the short-acting category, which includes secobarbital. Barbiturates lower serum bilirubin concentrations Per neonates and patients with congenital nonhemolytic unconjugated hyperbilirubinemia, presumably by i... https://euthanasiameds.com/nembutal/