Sustained release tablets containing cefaclor active component and preparation method thereof

The invention discloses a sustained-release preparation containing the active ingredient of cefaclor, which consists of the cefaclor, acrylics II, slow release stroma of hydroxypropyl methylcellulose, cementing agent, loading agent and other supplementary materials; wherein, the proportion by weight among the cefaclor, the slow release stroma and the acrylics II is 1:0.1-1:0.01-0.1. After being taken, the cefaclor sustained-release tablets can be slowly and continuously released according to the requirements to maintain effective blood level, thus achieving the action of controlled release. The sustained-release preparation has the characteristics of lasting action, low toxic and side effect, few times for taking medicine, and utilizing the minimum dose to achieve the best healing efficacy; furthermore, blood concentration is stable, the incidence rate of untoward effect is reduced, and the sustained-release preparation is more applicable to the use of the patients.