strychnine poisoning [Gk, strychnos + L, potio, a drink] , toxic effects of ingesting strychnine, a central nervous system stimulant. Symptoms include restlessness and hyperacuity of hearing and vision. Minor stimuli may produce convulsions, but there may be complete muscle relaxation between convulsions. One classic sign of strychnine poisoning is an arched back (opisthotonos).
