Synonyms: Metharbital sodium;Sodium metharbital;BARBITURIC ACID, 5,5-DIETHYL-1-METHYL-, SODIUM SALT;35107-70-1;LS-24186;2,4,6(1H,3H,5H)-Pyrimidinetrione, 5,5-diethyl-1-methyl-, sodium salt;2,4,6(1H,3H,5H)-Pyrimidinetrione, 5,5-diethyl-1-methyl-, sodium salt (9CI)