目的 优选抗甲方颗粒最佳干法制粒工艺。方法 考察制剂原料的含水量、休止角和压缩度等物理特性筛选干法制粒处方，以一次成型率、脆碎度、溶化性和制粒过程综合评分为指标，采用L₉（3⁴）正交试验法考察水平转速、压辊转速和压辊压力3个因素对干法制粒工艺的影响，并对最佳工艺进行验证。结果 确定最佳润滑剂及辅料配比分别为0.5%硬脂酸镁和20%的糊精（嘉兴白浪厂家），最佳干法制粒工艺参数：水平转速30 r/min，压辊转速5 r/min和压辊压力7 MPa。结论 优选最佳制粒工艺合理可行，制粒过程中胚片出片连续，颗粒色泽均一，硬度适中，成型性较好，干法制粒工艺稳定可行。

Objective To optimize the prescription of dry granulation process of Anti-Hashimoto's Thyroiditis Formula Granules.Methods Regarding primary formation rate, friability, and dissolubility and comprehensive in granulation process as indexes, the physical properties of water content, the angle of repose and the degree of compression were investigated to select dry granulation prescription. The technological parameters including horizontal speeds, rotate speed of roller and pressure rollers were screened by L₉(3⁴) orthogonal experiment were composed to be optimal technological prescription, and the optimum process was verified.Results The optimum lubricant and accessories ratio were 0.5% magnesium stearate and 20% dextrin respectively. The optimized dry granulation process parameters:horizontal speed 30 r/min, press roll speed 5 r/min and press roll pressure 7 MPa.Conclusion The optimized dry granulation preparation technology is feasible and reasonable, which shows good flakes continuous and granules with color uniformity, suitable rigidity and well formability in dry granulation preparation. After three batches of pilot-scale test, the dry granulation preparation technology is stable and feasible.

上海市科委平台资助项目（15DZ2292000）；上海市卫计委资助项目（ZY3-CCCX-5001）；上海市科学技术委员会（17401902600）