Pharmaceutical excipients refer to excipients and additives used in drug production and formulation; It is a substance that has been reasonably evaluated in terms of safety except active ingredients, and has been included in pharmaceutical preparations. In addition to shaping, acting as a carrier and improving stability, pharmaceutical excipients also have important functions such as solubilization, solubilization and sustained and controlled release, and are important components that may affect the quality, safety and effectiveness of drugs.
Compendium of Materia Medica, also known as Compendium of Materia Medica and Compendium of Materia Medica, volume 12, written by Chen Jiamo (Tingcai). Published in the forty-fourth year of Jiajing (1565). The first volume lists 14 pictures of famous doctors in past dynasties, which are transferred from the origin of medicine. Then there is the general introduction, divided into 18 topics to discuss authentic medicinal materials, wild species, harvest season, best medicinal parts, storage and preservation, authenticity identification, processing methods and so on. Among them, the section of "Distinguishing between true and false in trade" lists many examples of counterfeit drugs.
Emphasize the importance of distinguishing truth from falsehood. There are 448 kinds of drugs in the text and 388 kinds in the appendix. Its arrangement order comes from Wang Lun's Compendium of Materia Medica, which is divided into 10 parts: grass, wood, valley, vegetable, fruit, stone, beast, bird, insect fish and human. Each medicine describes its odor, yin-yang fluctuation, toxic and side effects, meridian tropism, source, morphology, processing, efficacy, indications and compatibility.
After each medicine, there is a "Mo Pressing", or quoting the theory of the former sages, or attaching the author's personal opinions to carry out the unfinished purpose. Chen's writing adopts an irregular contrast method, which is very helpful for beginners. There are 559 attached drawings, including more than 30 pictures of medicinal materials.