Objective To investigate the effect of different penetration enhancers on the permeation absorption of brucine. Methods The percutaneous permeation experiment was carried out with modifi ed Franz-type diffusion cell through porcine skin in vitro, and the concentration of each sample in the reception room was determined by HPLC to calculate the parameters, such as percutaneous absorption rate and enhancer ratio. Results The permeation of brucine could be enhanced by different penetration enhancers except twe...