<<Disclaimer: Verify this information before applying it to your situation.>>
 
There is a limited over-the-counter drug reference chart on this web
site:
http://www.mindspring.com/-drbsaks/gliadin.htm
 
To summarize the following stomach antacids & pain relievers
 contain gluten/gliadin:
Gas X
Pepcid
Tagamet
Advil
Excedrin
Tylenol
 
The others that tested negative for gluten/gliadin:
Tums
Zantac
 
 
* Poster's note: Please be aware that over the counter drugs often
change the so-called "inert ingredients" (binders).  One lot code batch
they may use corn starch, another batch oat starch. Current FDA
regulations do not require that the inert ingredients be posted or
consistent.
 
I've started to ask for the GF status in WRITING from the company when
the clerk seems to have doubts about the product. ;   >