The present invention relates to a pharmaceutical composition comprising anion exchange resin, silicon dioxide, crystalline cellulose, and pharmaceutically acceptable carriers and more particularly to tablets containing anion exchange resin prepared by mixing anion exchange resin, silicon dioxide and crystalline cellulose without adding water and tabletting the mixture. More preferably, the present invention relates to said pharmaceutical composition or tablets wherein the anion exchange resin is non-crosslinked anion exchange resin represented by the formula (I):
wherein R1 is an aralkyl group having from 7 to 10 carbon atoms or An alkyl group having from 1-20 carbon atoms; R2 and R3 are each independently the same or different and represent a lower alkyl group having from 1-4 carbon atoms; R4 is a hydrogen atom or a lower alkyl group having 1-4 carbon atoms; X is a physiologically acceptable counter ion; n is an integer of from 1 to 3; and p is an average degree of polymerization of from 10 to 10,000.
本发明涉及一种由阴离子交换
树脂、
二氧化硅、结晶
纤维素和药学上可接受的载体组成的药物组合物,更特别地涉及含有阴离子交换
树脂的片剂,其制备方法是将阴离子交换
树脂、
二氧化硅和结晶
纤维素混合,不加
水,然后将混合物压片。更优选地,本发明涉及上述药物组合物或片剂,其中阴离子交换
树脂是由式(I)表示的非交联阴离子交换
树脂:
其中 R1 是具有 7 至 10 个碳原子的芳烷基或具有 1 至 20 个碳原子的烷基;R2 和 R3 各自独立地相同或不同,代表具有 1 至 4 个碳原子的低级烷基;R4 是氢原子或具有 1 至 4 个碳原子的低级烷基;X 是生理上可接受的反离子;n 是 1 至 3 的整数;p 是 10 至 10,000 的平均聚合度。