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Lactose

Lactose

Category:
Other Excipients
CAS NO:
63-42-3
Standard:
ChP,USP,BP,In-house Standards,IP,
Price Range:
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Main Sales Markets:
North America,Central/South America,Eastern Europe,Asia,Middle East
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Basic Info

CAS Number
63-42-3
Pharmacopoeia
ChP,USP,BP,In-house Standards,IP
Grade
Pharmaceutical Grade
Is Manufacturer
No
Packaging & Delivery
Packaging Specification
25/kg Cardboard bucket
Minimum Order Quantity
1kg
Delivery Cycle
3-5 DAY

Product Description

乳糖广泛用作片剂和胶囊中的填充剂或稀释剂,有时用于冻干产品和婴儿食品配方中。乳糖也用作粉末吸入剂中的稀释剂。市场上有各种等级的乳糖供应,例如具有不同物理性质、粒径和流动性的产品。例如,在填充胶囊时,根据胶囊填充机的型号选择乳糖大小范围。一般情况下,当片剂湿法制粒并伴有研磨混合时,宜选择细粒级的乳糖,这样更容易与其他成分混合,也能在粘合剂中发挥更有效的作用。其他应用包括:作为吸入剂和冻干制剂的载体/稀释剂。添加到冻干溶液中的乳糖可增加体积并促进冻干块的形成。乳糖也与蔗糖以接近1:3的比例混合,用作糖霜溶液。从牛奶中制备乳糖的方法于1937年获得专利。1958年,通过喷雾干燥制备用于直接片剂生产的乳糖获得了专利。从那时起,乳糖一直被用作所有现代辅料的标准参考,用于直接压片。目前,市场上有许多等级的乳糖,包括无水α-乳糖、α-乳糖Chemicalbook一水合物和相对稀有的β-乳糖。一般来说,选择的乳糖水平取决于开发的药物剂型。直接片剂乳糖常用于小剂量的极端,这样可以省去制粒的过程。与结晶乳糖和粉状乳糖相比,直接片剂乳糖更具流动性和可压缩性,它含有经过特殊处理的纯α-乳糖一水合物和少量无定形乳糖。无定形乳糖的作用是提高乳糖的压力/硬度比。其它专门生产的直接片剂乳糖不含无定形原料,但可能含有玻璃状组合物,因此对提高可压缩性有(不利影响)作用。直接片剂乳糖也可以与微晶纤维素和淀粉混合,通常需要片剂润滑剂,例如0.5%(W/W)硬脂酸镁。在这些制剂中,乳糖的浓度为65%至85%。如果替代其他直接片剂赋形剂(如预胶淀粉),喷雾干燥乳糖的量可能会减少[1]。[1]RC 罗,PJ Shesky,PJ Weller。药用辅料手册[M].北京: 化学工业出版社, 2005, p. 372.secure以上翻译结果来自有道神经网络翻译(YNMT)·通用场景