›› 2012, Vol. 39 ›› Issue (7): 108-112.

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Optimizing Process and Formula and Analyzing Quality for Ivermectin Single Unilamellar Vesicles

HE Shu-hai1, BASANG Wang-dui2, SHE Yong-xin3   

  1. 1. Department of Animal Science, Xinyang Agricultural College, Xinyang 464000, China;
    2. Animal Husbandry Veterinarian’s Research Institute, Academy of Sciences of Tibet Agriculture and Animal Husbandry, Lhasa 850009, China;
    3. Institute of Quality Standards and Testing Technology for Agri-products,Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Revised:2011-11-18 Online:2012-07-20 Published:2012-07-16

Abstract: To obtain high entrapment rate of ivermectin single unilamellar vesicles. The study was aim to optimizing preparation process of ivermectin single unilamellar vesicles; we had selected some factors such as ultrasonic frequency, ultrasonic time, mass ratio of lecithin to cholesterol and mass ratio of ivermectin to lecithin to design orthogonal test L8(27), and we used RP-HPLC to determine the entrapment rate of ivermectin single unilamellar vesicles under every combination of process and formula. The results showed the optimal process and formula combination of ivermectin single unilamellar vesicles were as follows: the ultrasonic frequency was 200 kHz, the ultrasonic time was 6 minutes and the mass ratio of ivermectin to lecithin was 1:10. We have obtained high qualitative ivermectin single unilamellar vesicles by optimization,the loading rate reach (92.35?0.61)%,the quality of drug is fine, the preparation process are simple and feasible.

Key words: ivermectin; single unilamellar vesicles; prescription and preparation technology; quality analyzing; orthogonal test

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