Loreclezole hydrochloride, an antiepileptic compound, functions as a selective modulator of GABA A receptors. Specifically, it acts as a positive allosteric modulator on receptors containing β2 or β3-subunits.

Loreclezole (10, 25, 50 or 75 mg/kg, i.p. 60 min before measurement of seizure threshold ) results in a dosedependent rise in seizure threshold as measured by the dose of pentylenetetrazolrequired to produce a convulsion 60 min later. Loreclezole also has the least effect on loss of muscle tone as measured by the “pull-up” test[3]. Animal Model: Adult male Lister Hooded rats[3]. Dosage: 10, 25, 50 or 75 mg/kg. Administration: IP, 60 min before measurement of seizure threshold. Result: Resulted in a dosedependent rise in seizure threshold as measured by the dose of pentylenetetrazolrequired to produce a convulsion 60 min later.