The marina's infant mixture you get at chemists it's for wind/colic and reflux.
I mix 1ml of that to the 1ml of zantac.
For the sugar water
I use a 1/4 of a teaspoon of normal suger to a teaspoon of boiling water mix it so it disolves all the sugar and is no longer hot then just mix in the zantac i do this in a little medicine cup then use a dropper to suck it all up it comes to about 1.8mls all up then pop it into the side of her mouth and squirt a little at a time with her dummy in and she sucks it all down.

Oh and i asked my doctor if that was ok to do that and he said it was fine as long as we knew there was the 1ml of zantac in it then whatever i need to do to get her to take it is ok.