HERACLENE FOR PREEMIE

Hello po. I've been using heraclene for 7 days now. Can I still buy vitamins like ceelin and nutrillin? Kasi my preemie baby is magto two months this 14 tapos 1 oz lang kaya nya. Minsan nakukulangan sya kaya dagdag naman ako ulit ng 1oz. Is it normal? Nafu frustate na ako eh prang ang hina mya dumede. #preemiebaby