.gamma.-Hydroxy sodium butyrate .gamma.-Hydroxybutyrate sodium .gamma.-Hydroxybutyric acid monosodium salt .gamma.-Hydroxybutyric acid, sodium salt .gamma.-OH 4 HB 4-Hydroxybutyrate sodium 4-Hydroxybutyric acid monosodium salt 4-Hydroxybutyric acid sodium salt 4-OHB 502-85-2 Butanoic acid, 4-hydroxy-, monosodium salt Butanoic acid, 4-hydroxy-, sodium salt Butyric acid, 4-hydroxy-, monosodium salt Butyric acid, 4-hydroxy-, sodium salt EB 27 Gam-OH Gamma OH Hydroxybutyric acid monosodium salt NSC84223 Oxybate sodium SHB Sodium .gamma.-hydroxybutyrate Sodium .gamma.-oxybutyrate Sodium 4-hydroxybutyrate Sodium Oxybate Somsanit WY 3478 WY-3478