僅用于工業應用或科學研究，不可用于人類或動物的臨床診斷或治療，非藥用. Efalizumab is a targeted T cell modulator, and is a humanized monoclonal antibody of CD11a, the α subunit of LFA-1. Efalizumab inhibits T cell activation, cutaneous T cell trafficking, and T cell adhesion to keratinocytes, can be used for plaque psoriasis research