Sorry to jump in so late!! Things have been crazy with work.
We used the 40mg packets w/mylanta for a couple of months and decided to try the 20mg packets becuase Evan’s stools became very loose as a result of the Mylanta. (he is also on Alimentum, which does not help.)
After a short ajustment period, the 20mg’s have worked just as well at controlling his symptoms. We too, add the Zegerid to 1 or 2oz of formula at dosing time. Evan has done fine taking it, he didn’t seem to notice when we stopped buffering with the Mylanta.
Good Luck to you!