A drug delivery formulation for treating a mental illness or a central nervous system disorder is disclosed. The drug delivery formulation includes a microcapsule containing a biodegradable polymer and a drug and a crosslinked hydrogel and a method for preparing the same. The drug delivery formulation can slowly release a drug at a constant rate without a burst of drug release in the early stage of drug administration to maintain a constant blood drug level over a long period of time and thus enjoys the advantage of preventing excessive initial release of drug, thereby obtaining a desirable sustained release profile by single administration without necessity for multiple administrations divided at regular time intervals.
本发明公开了一种用于治疗精神疾病或中枢神经系统疾病的给药配方。该给药配方包括含有
生物可降解聚合物和药物的微胶囊以及交联
水凝胶及其制备方法。该给药配方能以恒定的速率缓慢释放药物,而不会在给药初期出现药物猝发释放,从而在较长时间内保持恒定的血药浓度,因此具有防止药物初始释放过多的优点,从而通过单次给药获得理想的持续释放曲线,而无需按固定时间间隔多次给药。