How to feed baby panadol

Hi mummies, when your baby has fever, and need to give panadol, if its during feeding time, do you feed before or after feed ? I tried giving baby panadol after milk, but he rejected it not sure if because he’s already very full or if it tasted bitter. Baby is 4m old. So end up he either reject the panadol or only consume very little. I usually give using bottle teat so he would suck and it wont spill, but i tried syringe too bt he would spit it out