US Patent 7858638 Methods and compositions for alleviating stuttering

Methods of treating stuttering include treating people with gamma-aminobutyric acid (GABA) receptor modulators, including cyclopyrrolones. A second active agent may be used with GABA receptor modulators. Active enantiomers, active metabolites, and pharmaceutically acceptable salts of gamma-aminobutyric acid receptor modulators, including cyclopyrrolones, are acceptable components of the compositions. The cyclopyrrolone class of modulators includes pagoclone, suriclone, zopiclone, 2-(7-chloro-2-naphthyridin-1,8-yl)-3-(5-methyl-2-oxohexyl)isoindolin-1-one, 2-(7-chloro-2-naphthyridin-1,8-yl)isoindolin-1-yl-4-acetamidobutyrate, and 2-(7-chloro-1,8-naphthyridin-2yl)-3-(5-methyl-5-hydroxy-2-oxohexyl)-1-isoindolinone.