Hydroxy Propyl Methyl Cellulose (HPMC) has become one of the most widely used pharmaceutical excipients at home and abroad, because HPMC has advantages that other excipients do not have.

HPMC used as sustained-release preparations can realize the effect of slow release of drug effect, and controlled-release preparations can realize the effect of controlling the release time and dose of drug effect. The sustained and controlled release preparation can keep the blood drug concentration of the user stable, eliminate the toxic and side effects caused by the peak and valley phenomenon of the blood drug concentration caused by the absorption characteristics of ordinary preparations, prolong the drug action time, reduce the number of times and dosage of the drug, and improve the efficacy of the drug. Increase the added value of medicines by a large margin.