{{hugs}} first off. Reflux is sooo tough.
We never thickened bottles but with reflux you just have to do what you can until you get the pain under control. We always tried to follow a modified EASY. We would feed upon wakening but continue to feed during A time. Does that make sense? We would follow the whole principle of EASY though and not feed to sleep. Even if Ella needed more food right before bed, depending on how old she was, we would make sure we put her down awake to not create a prop.
As far as spitting out the med. Have you tried squirting it as far back as you can, but off to the side a bit too? Like into the cheek? The trick is to get them to have to swallow without triggering the gag reflex. Ella, and a lot of other bubs here, grew to like her zantac once she associated it with "no more pain." You could try putting it in the bottle too and see what happens. As long as she's getting her full dose.
Congrats on the sleep and don't forget zantac is very weight sensitive and needs to be upped a lot.
I hope that helped a bit with the EASY (it's been so long it's a blur already
)
Just wanted to add, Ella still has reflux and is a champ sleeper. It's all due to BW. So it can be done with a 'fluxer, their GERD just needs to come first.