My son has Celiac and is taking Pepcid AC
It's probably best to ask the manufacturer, Merck & Co. Inc.:
Merck & Co., Inc.
One Merck Drive
P.O. Box 100
Whitehouse Station, NJ 08889-0100 USA
Monday-Friday 8:30 AM - 5:30 PM ET
They'll give you a definite answer.
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