Merlin is the trade name for ibuprofen suspension drops, the active ingredient of which is ibuprofen. Therefore, it can also be said that ibuprofen is the same as Merlin, and both of them have the same effect. The pharmacological action of ibuprofen belongs to antipyretic and anti-inflammatory drugs, and there are usually various dosage forms according to clinical needs, commonly used are ibuprofen tablets, ibuprofen extended-release capsules, ibuprofen suspension and ibuprofen suspension drops, ibuprofen cream, etc.. Among them, ibuprofen suspension and ibuprofen suspension drops are mainly used for antipyretic treatment in children.