Answer
The solution in a Xolair (omalizumab) 150 mg pre-filled syringe is clear to slightly opalescent and colourless to pale brownish-yellow.
Sources for this answer
- Xolair 150mg Solution for Injection in pre-filled syringeNovartis Pharmaceuticals UK Ltd · emc · SmPC §3 Pharmaceutical form · Version 22Document updated
Sources checked