A burning sensation in your stomach usually comes from excess acid irritating the stomach lining, and several over-the-counter options can help. The fastest relief comes from antacids, which neutralize acid within minutes. For longer-lasting control, acid-reducing medications work for 10 to 12 hours or more. What you choose depends on how often the burning happens and how severe it feels.
Antacids for Quick Relief
Antacids are basic compounds that neutralize stomach acid on contact. Their active ingredients include calcium carbonate (Tums), magnesium hydroxide (Milk of Magnesia), and aluminum hydroxide. They work within minutes and provide relief for a few hours, making them a good first choice when burning hits suddenly after a meal or in the middle of the night.
The tradeoff is that antacids don’t reduce how much acid your stomach produces. They simply neutralize what’s already there. If you find yourself reaching for antacids more than a couple of times a week, that’s a sign you may need something stronger.
H2 Blockers for Longer-Lasting Control
H2 blockers work differently from antacids. Instead of neutralizing acid after it’s made, they reduce production by blocking histamine, a chemical signal that tells your stomach to make acid in the first place. Famotidine (Pepcid) is the most widely available option in this category.
A single 20 mg dose of famotidine inhibits nighttime acid secretion by about 86%, and that suppression lasts at least 10 hours. When taken in the morning, it suppresses acid triggered by eating by roughly 76% for the first three to five hours, then tapers to about 25% by hour eight to ten. This makes H2 blockers a practical choice if your burning is predictable, like after dinner or while lying down at night.
Proton Pump Inhibitors for Persistent Burning
If your stomach burns frequently or severely, proton pump inhibitors (PPIs) like omeprazole (Prilosec) and lansoprazole (Prevacid) offer the strongest acid suppression available without a prescription. They work by shutting down the proton pumps in your stomach lining, which are the final step in acid production.
PPIs don’t provide instant relief. Their effect builds over several days of consistent daily use because they work cumulatively, deactivating more proton pumps with each dose. At steady state, a daily dose of 20 mg or more suppresses acid output by about 65% over a full 24-hour period. Most people take them once daily, 30 minutes before breakfast, for a two-week course.
Long-term PPI use carries some risks worth knowing about. Chronic use can shift the balance of bacteria in your gut, potentially increasing the risk of a C. diff infection. OTC PPIs are designed for short courses of 14 days, not indefinite use. If your symptoms keep returning after a course ends, that’s worth investigating further rather than just restarting the medication.
Bismuth Subsalicylate
Bismuth subsalicylate (Pepto-Bismol) takes a different approach. In the stomach, it reacts with hydrochloric acid to form a protective layer, and the salicylate component reduces irritation. It’s particularly useful when burning is accompanied by nausea or an upset stomach.
There are a few important cautions. Since it breaks down into salicylate (the same active compound in aspirin), you shouldn’t combine it with aspirin or other salicylate-containing medications, as toxic levels can build up. It’s also not recommended for children under 12, and long-term daily use isn’t advised because bismuth can accumulate and cause neurological side effects, especially in people with kidney problems.
Foods and Habits That Make It Worse
What you eat matters as much as what you take. Several common foods directly increase acid production or irritate an already inflamed stomach lining:
- Coffee and caffeine: stimulate acid production, with strong coffee and energy drinks being the worst offenders
- Alcohol: directly irritates the stomach lining and worsens inflammation
- Spicy foods: chili peppers, hot sauces, and heavy black pepper can aggravate symptoms
- Acidic foods: citrus fruits, tomatoes, and citrus juices add acid on top of acid
- High-fat and fried foods: slow digestion and contribute to inflammation
- Chocolate: contains both caffeine and fat, making it a double trigger
- Carbonated drinks: including sparkling water, can cause bloating and added discomfort
Eating smaller meals, avoiding food within two to three hours of lying down, and elevating the head of your bed by a few inches can also reduce nighttime burning. These changes won’t cure anything on their own, but they reduce how hard your stomach has to work against you.
Natural Options Worth Knowing About
Some herbal remedies have a plausible mechanism for soothing stomach irritation, though the evidence is less robust than for medications. Demulcent herbs like slippery elm and marshmallow root are rich in complex carbohydrate molecules that become slippery and gel-like when mixed with water. This mucilage coats the lining of the digestive tract on direct contact, physically buffering irritated tissue from acid. They’re typically consumed as teas or mixed into water as powders. They won’t suppress acid production, but they can take the edge off mild burning.
When Burning Signals Something Serious
Most stomach burning is a nuisance, not an emergency. But certain symptoms alongside it need prompt attention. Go to an emergency room if you experience severe stomach pain that makes it difficult to move, eat, or drink. Sudden onset of intense pain, a high fever, or blood in your stool or vomit are all red flags that point to something beyond simple acid irritation, like an ulcer, infection, or internal bleeding.
Burning that persists for more than two weeks despite treatment, or that comes with unintentional weight loss, also warrants investigation. These patterns can indicate conditions like H. pylori infection, gastritis, or peptic ulcers that need targeted treatment beyond what OTC options can provide.