So I have to take medicine for postpartum anxiety. I honestly can't decided if I should just switch…

So I have to take medicine for postpartum anxiety. I honestly can't decided if I should just switch the baby to formula or continue to breastfeed. One Dr says meds are safe the other Dr says that while they say it's safe there is always a risk that they are wrong. I don't know what to do and while I'm a mom who believes fed is best I feel so guilty about the idea of not breastfeeding. Any advice or support is welcome!