EFFECT OF FENTANYL ON PENDULAR ROTATION NYSTAGMUS IN SQUIRREL MONKEYS

Abstract

Pendular rotation nystagmus was repeatedly investigated in squirrel monkeys after injecting Fentanyl in different doses. Good nystagmic in-hibition was observed although the slow phase eye movement remained after more than 0.027 mg/kg of the drug was administered. Sequential tests demonstrated the pattern of nystagmic suppression and its recovery along the post-injection time course.