Answer
For Cetomacrogol Cream BP 1988 Formula A (Thornton & Ross Ltd product), macrogol cetostearyl ether is incompatible with phenols and reduces the antibacterial activity of quaternary ammonium compounds.
Sources for this answer
- Cetomacrogol Cream BP 1988 Formula AThornton & Ross Ltd · emc · SmPC §6.2 Incompatibilities · Version 4Document updated
Sources checked