Answer
In Exorex coal tar solution lotion, hydrogenated polyoxyl castor oil may cause skin reactions, while methyl and propyl hydroxybenzoates may cause allergic reactions that might be delayed.
Sources for this answer
- Coal Tar (Exorex) LotionTeva UK Limited · emc · SmPC §4.4 Special warnings and precautions for use · Version 5Document updated
Sources checked