The fumed silica is an amorphous structure with good physiological inertness, adsorption, dispersibility and thickening, and thus has been widely used in the pharmaceutical industry. Modern medical researchers have found that in the treatment of Ranitidine and Pirenzepine, a small amount of fumed silica will change its fluidity; in drugs containing griseofulvin, A small amount of fumed silica can change its dissolution rate, that is, change the dispersibility and absorption of the dissolved drug in water; in the powder containing aspirin, adding a small amount of fumed silica will change the antistatic property of the drug; In the medicine, the addition of fumed silica can utilize its high adsorption property, adsorbing microorganisms and micro viruses, and its adsorption capacity exceeds the adsorption capacity of the corresponding adsorbent applied in medicine, and the hydrophilicity of the fumed silica is utilized. Sexuality can eliminate edema or reduce secretions when the wound is inflamed.
The surface of the fumed silica is coated with a suitable monolayer material and dispersed in a colloidal solution of polyvinylpyrrolidone containing various cells. By centrifugation, the desired cells can be quickly separated without Stain cells. In addition, fumed silica can be used as a carrier for pharmaceutically active ingredients, a stabilizer for emulsions, for the manufacture of tablets, pills, suppositories, etc., and can improve the flow properties of the powder.