Hey MummaB

We tried gaviscon for a little while with our DD, but I found it was a bit of a pain to give too. I think I mixed it with EBM, and a smaller amount then recommended. I also tried popping the mix into a teat (not attached to a bottle), and then letting bub suck on the teat.
I think I also spread the dose out during a feed too, not sure if you are supposed to do that but it's something we tried.

Or, instead of the gaviscon you could try just giving some Guarcol, or other food thickening agent before, during and after a breastfeed. That can be a bit of a pain too, but can be very effective if given a real go with some bubs. He may hate it more at first, but it would be a smaller amount (but thicker then the gaviscon unfortunately). I have an almost full tin in my pantry that you could use? or I could just give you some for you to try. Anyway, probably confusing you now!

HTH