We have studied the GABAb receptor-mediated neurotransmissions of alco
holic patients by administering baclofen 10 mg orally and measuring th
e growth hormone (GH) response. There was a minimal GH response to the
baclofen in one of eight control subjects and a greater GH response i
n 11 of the 16 alcoholic patients. There is thus evidence for increase
d transmission at the GABAb receptor in detoxified patients with alcoh
ol-dependence syndrome.