Pharmaceutical excipients are excipients and additives used in the production of medicines and prescriptions, and are an important part of pharmaceutical preparations. As a natural polymer derived material, cellulose ether is biodegradable, non-toxic, and cheap, such as sodium carboxymethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, Cellulose ethers including hydroxyethyl cellulose and ethyl cellulose have important application value in pharmaceutical excipients. At present, the products of most domestic cellulose ether enterprises are mainly used in the middle and low-end fields of the industry, and the added value is not high. The industry urgently needs transformation and upgrading to improve the high-end application of products.

Pharmaceutical excipients play an important role in the development and production of formulations. For example, in sustained-release preparations, polymer materials such as cellulose ether are used as pharmaceutical excipients in sustained-release pellets, various matrix sustained-release preparations, coated sustained-release preparations, sustained-release capsules, sustained-release drug films, and resin drug sustained-release preparations. Preparations and liquid sustained-release preparations have been widely used. In this system, polymers such as cellulose ether are generally used as drug carriers to control the release rate of drugs in the human body, that is, it is required to release slowly in the body at a set rate within a certain time range to achieve the purpose of effective treatment .

According to statistics from Zhiyan Consulting Research Department, there are about 500 kinds of excipients that have been listed in my country, but compared with the United States (more than 1,500 kinds) and the European Union (more than 3,000 kinds), there is a huge gap, and the types are still relatively small. The development potential of the market is huge. It is understood that the top ten pharmaceutical excipients in my country’s market size are pharmaceutical gelatin capsules, sucrose, starch, film coating powder, 1,2-propanediol, PVP, hydroxypropyl methylcellulose (HPMC), microcrystalline cellulose Vegetarian, HPC, Lactose.