Is it desperately necessary you start the medication at the 8 month mark, could you hold off and start taking once your baby has turned 12 months and you’ve weaned them off the breast? Obviously understand if that’s not an option, my logic just goes well if you’ve made it this far and they’re not going to start it for another 3 months from now, what harm will an extra couple on top do?? Sorry if that’s completely not appropriate that’s just where my brain would go if it was me! X
Double check the medication on the breastfeeding network. Quite often doctors will say that something isn't suitable for breastfeeding when it actually is as they just done have the specific knowledge. It could still be the case that's it's not compatible unfortunately but definitely worth a check https://www.breastfeedingnetwork.org.uk/drugs-factsheets/
I'm sorry to hear this. I don't think you have to totally switch yet but it'd be a good idea to give her a bottle a day of BM/formula to make sure she will take a bottle. I give 1 bottle of formula a day and bf the rest of the time and it works great for us. Then over time you could gradually increase bottles so you are fully swapped over by July.