When to Call A Doctor
Make an appointment to see your doctor if you have symptoms of gastritis that awaken you from sleep, prevent you from eating, or interfere with your work or school performance. Call your doctor if you use nonprescription antacids or H2 blockers more than twice each week to treat your symptoms.
Call your doctor immediately if you have severe abdominal pain, blood in your vomit, or stools that look black and tarry.
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