Which excipients are present in the Xolair (omalizumab) 150 mg solution for injection in a pre-filled syringe?

Xolair (omalizumab) 150 mg solution for injection in a pre-filled syringe contains arginine hydrochloride, histidine hydrochloride monohydrate, histidine, polysorbate 20 and water for injections as excipients.