Infant fever reducers are definitely Buropen syrup.

The fever reducer that the baby has been using since they were young is Buropen syrup. It was also effective when they had a high fever or headache due to a cold.

Blue Pen Syrup is said to be effective for back pain and muscle pain as well. It also tastes good, so children do not refuse it and eat it well.

These days, I can find it at pharmacies and convenience stores, so I think it's good because I can get it when my baby suddenly has a fever in the evening.