The manufacturing process for Xolair is rather involved. First, human IgE is injected into mice, which produce the corresponding antibody anti-IgE. Then, after the antibody is "humanized," biotech methods are used to extract the needed protein drug.
抗體藥物「索雷爾」的製程頗為複雜，首先將人體的 IgE 放入小老鼠體中使其產生相應的抗體 Anti-IgE，然後再將它「人源化」後，以生技方法取得所需的蛋白質藥物。