Before Using This medicine: This medication blocks acid in the stomach. It is used to treat ulcers, esophagitis and conditions due to high acid secretion.

Other Medical Problems: Prevacid decreases the amount of acid produced in the stomach. Prevacid is used to treat and prevent stomach and intestinal ulcers, erosive esophagitis (damage to the esophagus from stomach acid), and other conditions involving excessive stomach acid such as Zollinger-Ellison syndrome.

Proper Use of This Medicine: Take one tablet daily.

Precautions While Using This Medicine: Tell your doctor of any over-the-counter or prescription medication you may take including sucralfate, iron, theophylline, ampicillin, digoxin, or ketoconazole. Do not start or stop any medication without doctor or pharmacist approval. This drug may cause an allergic reaction in patients with a history of sensitivity to the following: Omeprazole/Lansoprazole.

Side Effects of This Medicine: Nausea or stomach pain may occur. If these effects continue or become bothersome, inform your doctor. Notify your doctor of you develop diarrhea, rapid heartbeat, muscle pain, chest pain, changes in stool color, stomach pain, breathing trouble mood changes or vision changes. An allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of an allergic reaction include rash, itching, swelling, dizziness or trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.