Which Among Enfamil And Dexolac Is Good For Baby?

Hi doctor My baby s two n half mnths n i hav been breast feeding and top up feed s also given as she s nt satisfied my milk doc advised on nan pro 1, bt pas two days she nt takin nan pro, she spits out if v gv nan, doc asked me to change to enfamil r dexolac bt confused which one to go ? Can u help me with this