Supplementary material benefit Some of the active ingredients of the drug are unknown, and therefore require additional material, which can produce the desired effect in conjunction with the work of API. For example, in the case of a medicinal herb, the API is usually a mixture of several compounds and substances, which are activated and act on a combination of the whole body. Thus, in this case, the active drug ingredient is not a singular substance, but several herbs and ingredients of the apex. API power Manufacturers typically use a certain standard and computational benchmark to determine the relative strength of the drug or drug within the active pharmaceutical ingredient. However, the standard of API of the advantages of the method is different from one brand to another. Although there is a manufacturer can use a certain standard to evaluate the strength of raw materials, other manufacturers can use different standards.