My 2 month old won't take medications, what to do :(

Hi mummies, my 2 month old girl has acid reflux and the PD prescribed her some medications called Zantac and Motilium. When I tried feeding her the meds with a syringe she screamed and lashed out and spit it all out. So I mixed it with the milk to feed her by a bottle but she ended up refusing to drink the milk too :(. When I tried tasting the med it's really bitter, no wonder why she didn't like it! Any tip on how to make her take it?