This invention discloses a briceceran sustained-release tablet and its preparation method, belonging to the field of pharmaceutical formulations. This invention aims to solve the problems of
food effect, release
instability, and processability issues associated with briceceran sustained-release tablets. Technical solution: A tablet-within-a-tablet structure is adopted, with the sustained-release core containing a composite hydroxypropyl methylcellulose (high /
medium viscosity mixture) and micronized
ethyl cellulose, and the immediate-release outer layer containing a disintegrant; the preparation includes
ethanol granulation and compression steps. Technical effects: Achieves stable
drug release over 24 hours, with a postprandial / fasting release difference of <3%, avoiding
dose dumping, while improving flowability and
hardness by 53%, suitable for industrial production.