Help???

So my daughter has been exclusively breastfed for 8 months but I just had to change medication and the one I'm taking isn't safe for breastfeeding. My problem is she refuses to take a bottle. She likes Similac the most which is nice since thats what we get with wic but other then one time she refuses to take it. We tried having me leave completely for a bit and have them feed her, I added a little of her baby food to it to see if it'd help but nothing seems to help. Luckily i had a stock of breastmilk built up but we used the last of it this morning. Is there anything i can do that'll help her take the formula even just a small bit at a time?? Its been an exhausting ride