A GABA agonist is a drug which acts to stimulate or increase the action at the GABA receptor, producing typically sedative effects, and may also cause other effects such as anxiolytic and muscle relaxant effects. There are three receptors of the gamma-aminobutyric acid. The two receptors GABA-α and GABA-ρ are ion channels that signal chloride and diminish further action potentials. The GABA-β receptor belongs to the class of G-Protein coupled receptors that inhibit adenylyl cyclase, therefore leading to decreased cyclic adenosine monophosphate (cAMP). GABA-α and GABA-ρ receptors produces sedative and hypnotic effects as well as producing anti-convulsion properties. GABA-β receptors also produce sedative effects and also leading to changes in gene transcription.