Answer
Yes, prolonged use of Boots Paracetamol and Codeine Extra Capsules for headaches can make them worse; if this occurs or is suspected, discontinue treatment and obtain medical advice.
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