Gastroesophageal reflux disease (GERD) is a chronic digestive condition that occurs when stomach acid travels up into the esophagus, the tube that connects the stomach and throat. This backwash of acid is called reflux. Heartburn is a classic symptom of GERD. Heartburn sufferers are familiar with a burning sensation in the chest that may intensify when leaning over or lying down. Spicy or fatty foods, citrus fruits and chocolates are heartburn triggers for many. Although uncomfortable, heartburn is typically not serious, and can be fairly easily treated. Mixing baking soda, or sodium bicarbonate, with water may provide relief from acid reflux. Consult your doctor if your acid reflux persists or becomes more painful.
Considerations
Baking soda works by neutralizing excess stomach acid, and will most effectively treat heartburn and acid indigestion if taken one to two hours after eating, according to PubMed Health. Do not take sodium bicarbonate after eating large amounts of food.
Dosage
Dissolve a half-teaspoon of baking powder in 4 ounces of water to treat acid indigestion in adults and teenagers, PubMed Health advises; use a measuring spoon to make sure the amount is accurate. Repeat this dosage every two hours, unless otherwise instructed by your doctor.
Frequency
Do not exceed seven half-teaspoon doses of baking soda for heartburn in a 24-hour period, manufacturer Arm & Hammer cautions; people over age 60 should not take more than three half-teaspoon doses. Taking more frequent doses of baking increases the risk of side effects, which may include gas, stomach cramps and excessive thirst.
Time Frame
Baking soda should be used as a heartburn remedy for no longer than 14 days unless your doctor recommends it. If acid reflux discomfort persists, consult your doctor, advises PubMed Health.
Restrictions
Individuals on a sodium-restricted diet should not take sodium bicarbonate unless prescribed by a doctor. Baking soda boosts your body's sodium levels.
Speak with your doctor before taking sodium bicarbonate if you have a history of high blood pressure, kidney disease, congestive heart failure or bleeding in your intestine or stomach, or if you take other medications. Certain prescription drugs may interact with antacids.
Talk to your doctor before taking baking soda if your are pregnant or breast-feeding. Children under age 12 should only take baking soda under the supervision of a health-care professional.


