5-Allyl-5-isopropylbarbituric acid; allylisopropylmalonylurea;a hypnotic and sedative with intermediate action; available as aprobarbital sodium, with the same uses. ... (05 Mar 2000) ... 
(ap″ro-bahr´bĭ-tәl) an intermediate-acting barbiturate, used as a sedative and hypnotic; administered orally.