Are you offering the second breast to do the top up? Like she finishes one side and takes a tiny bit from the other.

It can take a couple of weeks for the medication to completely settle the reflux, and then sometimes a little longer for bubs to become more settled, as they are still expecting the pain. Reflux babies tend to become unsettled at the end of a feed, its not necessarily because they want more to drink, its that it can cause pain filling their stomachs up to the brim. Then they can get pain again in about 1 to 11/2 hour, then they act like they want another feed, which is their way of soothing the pain with the milk, so you will end up feeding, it can become a vicious circle. Its why reflux bubs tend to snack feed. A dummy can help out heaps to settle and try to prolong the feeding times, reducing the cycle, so it is worth a try.

The quickest and best way to remove top ups with formula is to just stop them completely. It can be difficult to do but your supply with change quickly to match.

It is a myth that bottle feeding makes babies more settled and sleep longer. It can also make reflux worse. Hang in there, things will improve, I promise.