According to solubility, it can be divided into soluble granule, suspended granule and soaking Tengchong agent. The vast majority of soluble particles are water-soluble particles, such as Ganmao antipyretic particles and Banlangen particles. Water-soluble particles are sometimes referred to as "infusions" and "dry syrups" with the same particles. In addition, there are alcohol-soluble particles, such as Yangxue Yufeng wine particles. A certain amount of drinking wine is added to each packet of granules, and the medicinal liquor is obtained after dissolution. Suspended particles, such as orange granules, multi-pulse preparations, etc. Take or swallow in suspension in boiling water. Soaking Tengchong agent, such as hawthorn soaking Tengchong agent, contains citric acid or tartaric acid and proper amount of sodium bicarbonate in addition to general auxiliary materials, and produces carbon dioxide bubbles when it meets water.

According to the shape of the finished product, it can be divided into granular particles and massive particles. The former is used most, so the particles are also called "particles". The latter is to add lubricant to the dried granules and press them into blocks with a certain weight, such as acanthopanax senticosus granules.

According to the quality requirements of particles, the fineness of particles should generally pass through 10 ~ 50 mesh sieve, but the fine particles that cannot pass through 10 mesh sieve and 65 mesh sieve should not exceed 8%; The appearance of the finished product should be dry, with uniform particles, uniform color, no caking and no moisture; Aqueous solution particles can be made of 1 part and 20 parts of boiling water, and should be soluble without impurities such as coke chips. Suspended particles can be suspended evenly if boiling water is added before, and the time limit varies according to the variety and use. Tengchong effervescent water, should immediately produce a lot of carbon dioxide, effervescent. The water content is generally controlled below 5%; Unless otherwise specified, for single-dose packaged particles and bulk particles, the difference between loading capacity and bulk weight should be within 5% of the soil.