Mechanism: Neutralizes excess stomach acids

▪ Indications: gastroesophageal reflux, ulcers

▪ Side effects:

• Constipation and hypophosphatemia (due to aluminum

hydroxide)

• Diarrhea and hypermagnesemia (due to magnesium

hydroxide)

▪ Example: Gaviscon, Kremil-S, Maalox