THye usually say that you need to offer it constantly. Also, if you will no longer breastfeed, then they say you should only offer the bottle and have her take it when she is hungry. Iwas never able to breastfeed so I am really no help about the weaning and switching to the bottle, however, on the breastfeeding forum there is a post on support for weaning and I am sure the ladies there will have much better advice. Sorry I couldnt help much. Good luck, Christie