A study was made on the antagonizing effect of Jinkui Shenqi Wan on the ototoxicity induced bygentamycin, by measuring the auditory evoked potential of the giunea pit’s brain stem and observing the animal’s behaviour, temperature, oxygen consumption and stress function-The results showed that gentamycin couldmarkedly increase threshold value of the auditory evoked potential and cause listlessness, crispation, hypoactivity,hyporeaction, loss of body weight, poor appetite, drop of temperature, decrease of oxy...