Pharmaceutical excipient supplierDextrin is considered a technical term used to measure the cooking process of raw materials. When starch is decomposed and hydrolyzed under the action of heat, acid, or amylase, the macromolecular starch is first converted into small-molecule intermediate substances. At this time, the small-molecule intermediate substance is called dextrin. Dextrin is a polymer of glucose and is used as an adhesive and hardener in surgical dressings. It is also used as a diluent for tablets and capsules; a binder for tablets; a plasticizer and binder in sugar-coating formulations; or a thickener for suspensions. In addition, due to its low electrolyte content and lack of lactose and sucrose, dextrin is also a sugar source for people with special nutritional needs. Dextrin is also used in cosmetics.

　　Pharmaceutical excipient suppliers believe that starch is also used as a bulking agent when filling hard capsules. In tablet formulation design, newly prepared 5%-25%(W/W) starch is used as a binder for tablet granules. The dosage in the formulation is determined through optimization studies. Screening parameters include granule friability, tablet friability, hardness, disintegrant, and drug dissolution. Starch is a commonly used disintegrant, usually at a concentration of 3%-15%(W/W). Ordinary starch has poor compressibility, is easily broken, and is prone to cracking at high concentrations. In granulation formulations, half of the starch used as a disintegrant is used for granulation, and the other half is added during dry granule mixing. As a disintegrant, starch exhibits the characteristics of type II adsorption isotherms and has a large surface area, which is conducive to water absorption. Starch is also used as an adjuvant in new drug delivery systems, such as nasal mucosa, oral cavity, periodontal, and other parts of the delivery system. Starch is also used in topical preparations; for example, due to its absorption properties, it is used in powders for human use and as a skin covering in ointment preparations. Starch paste is also used as an emollient, a base for preparing enemas, and in the treatment of iodine poisoning. In practice, rice starch solution is used to prevent or treat dehydration caused by severe diarrhea.

　　Pharmaceutical excipient supplierThe concept of pharmaceutical excipients:

　　1. Drugs refer to substances that can prevent, treat, and diagnose human diseases, and are a general term for various raw materials, crude drugs, and medicines. Dosage forms (abbreviated as dosage forms) are a general term for a category of "dosage forms" prepared according to the characteristics and uses of drugs.

　　2. Drug preparations (abbreviated as preparations) are specific types of drug application dosage forms prepared to meet therapeutic or preventive needs.

　　3. Pharmaceutical excipient suppliers believe that pharmaceutical excipients are inactive ingredients in drug production and prescriptions other than the main drug.

　　4. New pharmaceutical excipients refer to excipients that are used for the first time in China as pharmaceutical excipients for production and preparation.

　　5. Special pharmaceutical excipients refer to pharmaceutical excipients derived from animal viscera, organs, fur, and bones.

　　Pharmaceutical excipient supplierIncludes excipients for gastrointestinal administration, i.e., commonly used excipients such as powders, tablets, granules, and suspensions. Excipients for parenteral administration, such as injections, sprays, aerosols, powder aerosols, ointments, plasters, patches, nasal drops, eye drops, mouthwashes, and other commonly used excipients.