Heraclene

Can I combine Heraclene with oyher vitamins to help my baby gain weight and keep his immunity strong. If yes, then what? Please help me mommies. I've been so very frustated his 11month old still 6oz bottle fed. Maximum of 3 bottles na siya a day. Pilitan pa siya padedein tapos may matitira pang 2oz ayaw ubusin. Naiiyak nlng ako sa payat ng baby ko. I've been asking our pedia to recommend some other vitamins but they wont. Dahil mataas na daw po yung heraclene. But i've been reading some thread, they do give other vitamins pafin daw bukod sa heraclene. So I want to ask for some suggestions what the best to pair to my baby's heraclene. Thanks!