Answer
Boots Paracetamol and Codeine Extra Capsules contain the colouring Ponceau 4R (E124), which may cause allergic reactions.
Sources for this answer
- Boots Paracetamol and Codeine Extra CapsulesTHE BOOTS COMPANY PLC · emc · SmPC §4.4 Special warnings and precautions for use · Version 16Document updated
Sources checked