申请人:Rogerson, Alan George
公开号:EP0100168A2
公开(公告)日:1984-02-08
The invention relates to a process for preparing a wet granulate suitable for use in manufacturing tablets by compression and compaction thereof.
The process comprises first forming an intimate mixture of particulate-solid materials including pharmacologically or like active matter and tabletting aids. Then one predetermines a quantity of granulating fluid needed to convert the entire particulate-solid mixture into a desired moist, coherent, non-pasty mass as known per se but homogenizes part only of the particulate-solid materials, separately from the remainder thereof, with a chosen amount of granulating fluid, that chosen amount being at least 90% by weight of the aforesaid predetermined quantity of granulating fluid, so as to form a substantially-homogeneous slurry wherein the percentage by weight of solids in the slurry, namely:
Total Solids, i.e. both dissolved and undissolved x 100
Total Slurry, i.e. fluids plus total solids
is at least about 25% w/w. Thereafter, the remaining part of the particulate-solid material is moistened in the manner of «wet-granulation» as known per se but with the thus-prepared slurry (and then as necessary with the balance of the granulating fluid, if any) so as thus to form the desired substantially-uniform, moist, coherent, non-pasty mass ready for granulation.
本发明涉及一种通过压缩和压实制备适用于片剂生产的湿颗粒的工艺。
该工艺包括首先形成颗粒-固体材料的亲密混合物,包括药理或类似活性物质和制片助剂。然后,预先确定将整个颗粒-固体混合物转化为所需的湿润、连贯、无呕吐物的颗粒-固体混合物所需的造粒液量,但只将颗粒-固体材料的一部分与其余部分分开,用选定量的造粒液进行均质,该选定量至少为上述预定量造粒液重量的 90%,以形成基本均质的浆料,其中浆料中固体的重量百分比,即: 总固体量,即: 总固体量,即: 总固体量,即: 总固体量,即: 总固体量,即: 总固体量:
总固体,即溶解的和未溶解的 x 100
淤浆总量,即流体加固体总量
至少约为 25% w/w。然后,按照已知的 "湿法造粒 "方式,将颗粒-固体材料的剩余部分用这样制备的泥浆(必要时再用剩余的造粒液(如果有的话))润湿,从而形成所需的基本均匀、湿润、连贯、无粘性的团块,以备造粒。