免疫增强剂代表一大类药物,包括细菌、细菌产物、植物产物、合成制剂和免疫系统本身产物等。它们可以起免疫调节作用。其中有些药物的主要作用为放大抗原刺激引起的免疫反应,在无抗原存在时作用很小,它们可称为“免疫佐剂”(Immunoadjuvants)。有些药物,如左旋咪唑等,只能加强受抑制的免疫反应,对 Immune enhancers represent a broad class of drugs, including bacteria, bacterial products, plant products, synthetic preparations and the immune system itself. They can play an immunomodulatory role. Some of these drugs have the main effect of amplifying the immune response caused by antigen stimulation, with little effect in the absence of antigen, which may be referred to as “Immunoadjuvants.” Some drugs, such as levamisole, can only strengthen the suppressed immune response, right