Excipients for micro-drug delivery systems include excipients for microemulsion delivery systems, excipients for microcapsule carriers, excipients for microsphere carriers, and excipients for nanoparticle carriers, etc.
CD Formulation provides excipients for micro-drug delivery systems including emulsifiers and other materials. Emulsifiers are essential components of microemulsions to reduce interfacial tension and form adsorption films. There are many types of emulsifiers, but not all emulsifiers can be used in microemulsions, and their selection should take into account not only the microemulsion itself, but also the purpose of use, economy and safety.
In general, the carrier determines the nature and effect of the microdrug, so the purpose of the preparation should be clearly defined when selecting the microdrug, either to improve the stability of the drug and mask the bad odor, or to slow release and prolong the effect. On the basis of these purposes, suitable carriers are selected to achieve the corresponding purposes.
When selecting carrier materials, the viscosity, permeability, hygroscopicity, solubility, stability and the nature of the drug should be considered from the physicochemical point of view, while combining the clinical and formulation requirements. Usually, several materials can be selected and made into capsule experiments first, and finally, suitable materials are determined by prescription and process screening.