Objective:To observe the effect of Huoxue Tablet(HXT)in treating hearing loss caused by gentamycin ototoxicity in guinea-pigs.Methods:Change of hearing was recorded with auditory brain-stem evoked response audiometer(ABR), and state of hair cell was determined with light and electron microscopy.Guinea-pigs were treated with HXT after gen- tamycin ototoxicity for a month.Results:After HXT treatment,hearing of animals improved significantly for 6.07 dB in average,P