Recently, it has been demonstratedlP16 that 0-CCE antagonizes the anticonvulsant actions of diazepam, lowers the seizure threshold of the convulsant pentylenetetrazole (PTZ), antagonizes the sedative actions of flurazepam, and is anxiogenic. l'A closely related compound, 3-(hydroxymethyl)-p-carboline, l0 was shown to antagonize both the anticonvulsant and anxiolytic actions of diazepam at doses that do not exert overt ...