My 2 mth old twins are constipated and have be for aboutba wk and dr doesnt seem to be much help..ive tried water.karo syrup..apple juice..q tip u

In buttt. Stomach massage and bicycling..the only thing that has worked is prune juice..they have pooped now but back constipated and i dont wanna keep giving them prune juice everyday..idk how safe that really is and i feel like thats just a temporary fix. Is there anything else i can do btw they are formula fed