The present invention concerns a sustained-release microcapsule preparation comprising an ion exchange resin with 6 to 16% crosslinking, containing a drug adsorbed to not less than 80% of its theoretical ion adsorption amount and coated with a water-permeable polymer.
The sustained-release preparation of this invention contains a high concentration of an absorbed drug: it shows neither cracking nor breaking in its coat and exhibits good sustained-release properties which enhance its dosage form design and makes it easy to take.
本发明涉及一种缓释微胶囊制剂,该制剂由交联度为 6% 至 16% 的离子交换
树脂构成,其中含有吸附量不低于理论离子吸附量 80% 的药物,并包覆有透
水性聚合物。 本发明的缓释制剂含有高浓度的吸附药物:其包覆层既不会开裂,也不会破损,并且具有良好的缓释特性,从而增强了其剂型设计,使其易于服用。