<<Disclaimer: Verify this information before applying it to your situation.>>

Here are some excerpts of my survey:

.....Everyone said Gas-X liqui gels is GF.  The chewable is NOT.

.....Phayzme is GF

.....a SAFE alternative is the homeopathic remedy LYCOPODIUM 30C....2pills
udner the tongue as needed..My md [who is a homeopath]  gave this to my
mother...stopped the gas w/o "problems"  Stopped it almost instantly and
never a side effect

.....Gas-X definitely has gluten in it.  Mylanta AntiGas does not have
gluten-containing ingredients added to it, but manufacturer will not
guarantee it is gluten-free.  Only Di-gel is supposed to be GF.