Heartburn (Reflux) (cont.)

• Antacids. Antacids neutralize excess stomach acid to relieve heartburn, sour stomach, acid indigestion, and stomach upset. They are also occasionally recommended to help relieve the pain of ulcers. Some antacids also contain simethicone, an ingredient that helps eliminate excess gas. Examples of antacids include: Tums, Rolaids, and Maalox. You should take antacids exactly as directed by your doctor, or according to the manufacturer's directions. If you are using the tablets, chew them well before swallowing for faster relief. Serious side effects can occur with an overdose or overuse of antacids. Side effects include constipation, diarrhea, change in color of bowel movements and stomach cramps.
  
  
• Acid Blockers. These medicines relieve heartburn, acid indigestion, and sour stomach, and are available without a prescription. Pepcid AC, Tagamet HB, Zantac 75, Axid AR, and Prilosec OTC are examples of over-the-counter acid blockers. Acid blockers work by reducing the production of stomach acid. Take these medications according to the directions on the package, or as advised by your doctor. Possible serious side effects that need to be reported to your doctor right away include confusion, chest tightness, bleeding, sore throat, fever, irregular heartbeat, weakness, and unusual fatigue. Other less serious side effects include mild headache, dizziness and diarrhea, which are usually temporary and will likely go away on their own.

People who have more severe heartburn symptoms that aren't relieved with these medications or who have been using these drugs for more than two weeks should contact their doctor. They may need medicine only obtained with a doctor's prescription.

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Source: MedicineNet.com
http://www.medicinenet.com/heartburn_reflux/article.htm