Poplar flower oral liquid and preparation method thereof

The invention discloses poplar flower oral liquid and a preparation method thereof. Each 100 L of the poplar flower oral liquid is prepared from 50 L of poplar flower extracting solution, 2 kg-5 kg of ethyl alcohol, 0.1 kg-0. 2 kg of methylparaben, 0.04 kg-0. 06 kg of propylparaben, 0.4 kg-0. 6 kg of polysorbate 80 and the balance purified water. According to the poplar flower oral liquid, the ethanol is used as a latent solvent, and the methylparaben, the propylparaben and the polysorbate 80 are used as auxiliary materials, so that water-insoluble precipitates in the poplar flower oral liquid are avoided, and the stability of the poplar flower oral liquid is improved. 本发明公开了一种杨树花口服液及其制备方法，每100L口服液组成为:杨树花提取液为50Ｌ、乙醇为2 kg～5kg、尼泊金甲酯为0.1 kg～0.2kg、尼泊金丙酯为0.04 kg～0.06kg、聚山梨酯80为0.4 kg～0.6kg，余量纯化水。本杨树花口服液将乙醇作为潜溶剂，将尼泊金甲酯、尼泊金丙酯和聚山梨酯80作为辅料，避免了杨树花口服液中出现不溶于水的沉淀，有利于提高杨树花口服液的稳定性。