Can I take antacids or Pepto-Bismol® while I am taking Periostat®?
You can take antacids or Pepto-Bismol® while taking Periostat®; however, you should not take them at the same time. The absorption of Periostat® is reduced when taken with antacids containing aluminum, calcium, or magnesium, or when taken with bismuth subsalicylate (Pepto-Bismol®). So, if you take any of these products, you should take them at least 3 to 4 hours before or after you take Periostat®.