目的　探讨乳泉颗粒剂的催乳作用。方法　用左旋多巴 (l- dopa)建立母鼠产生乳汁分泌不足的模型 ,观察不同剂量的乳泉颗粒剂对哺乳期母鼠体重、泌乳量和血清催乳素的影响 ,以及对仔鼠生长的作用。结果　大鼠 ig给予乳泉颗粒剂 5 .5 6 g/ kg能明显增加母鼠的泌乳量 ,显著促进母鼠的生长 ,也有促进仔鼠生长的趋势 ;同时还能提高母鼠血清催乳素的含量。结论　乳泉颗粒剂对造模母鼠显示了明显的催乳作用。 Objective To investigate the prolactin effect of Ruquan Granules. METHODS: L-dopa was used to establish a model of maternal deficient lactation. The effects of different doses of milk granules on lactation weight, lactation, and serum prolactin were observed, and the effects on the growth of offspring were observed. effect. Results The rats given ig granules at a dose of 5.6 g/kg could significantly increase the lactation of the mother rats, significantly promote the growth of the mother rats, and also promote the growth of the pups. At the same time, the rats can also increase the serum prolactin levels. content. Conclusion Milk spring granules showed obvious prolactin effect on model rats.