Overview of Diluents and Absorbents:

　diluent:Suitable for patients with a main drug dosage of less than 0.1g, high content of extract, or high viscosity that makes it difficult to prepare.

　　Absorbent:Suitable for those containing a large amount of volatile oils, fatty oils, or other liquid raw materials.

(1) Starch: It is a commonly used diluent and can also be used as an absorbent and disintegrant.

(2) Dextrin: an intermediate product of starch hydrolysis, often used in combination with starch as a filler and adhesive.

(3) Sugar powder: an excellent diluent for tablets, with both taste correction and adhesive properties. Mostly used for lozenges and chewable tablets.

(4) Lactose: Non hygroscopic, with good fluidity and compressibility, especially suitable for hygroscopic drugs.

(5) Calcium sulfate: It has strong absorption capacity for oils and can reduce the hygroscopicity of drugs.

(6) Calcium hydrogen phosphate: a good absorbent for traditional Chinese medicine extracts, oils, and oil containing extracts.

(7) Others: Magnesium oxide, calcium carbonate, magnesium carbonate, etc. can all be used as absorbents, suitable for traditional Chinese medicine slices containing volatile oils and fatty oils. Mannitol can be used as a diluent for chewable tablets.