The best thing for indigestion depends on whether you need relief right now or want to prevent it from coming back. For immediate symptoms, an over-the-counter antacid containing calcium carbonate works within minutes. For recurring indigestion, simple changes to when and how you eat often do more than any pill.
Fast Relief: How OTC Options Compare
Over-the-counter medications for indigestion fall into three categories, and they work on very different timelines.
Antacids (calcium carbonate, found in brands like Tums and Maalox) neutralize stomach acid on contact. They’re your fastest option, working almost immediately. The tradeoff is that relief typically lasts about an hour before you may need another dose.
H2 blockers (famotidine, sold as Pepcid) reduce the amount of acid your stomach produces rather than neutralizing what’s already there. They take longer to kick in, usually 30 to 60 minutes, but the effects last several hours. These are a better choice if you know a meal is likely to cause trouble and you want to get ahead of it.
Proton pump inhibitors (omeprazole, sold as Prilosec) are the strongest acid reducers available without a prescription. But they’re not designed for quick relief. PPIs can take one to four days to reach full effect, so they’re meant for people dealing with frequent indigestion over weeks, not a single bad meal. They also carry some concerns with long-term use. Extended PPI use has been linked to higher risks of bone thinning, certain gut infections, and problems absorbing vitamins and minerals. If you’ve been taking one for more than a few weeks, it’s worth checking whether you still need it.
Eating Habits That Prevent Indigestion
About 68% of people with chronic indigestion can identify specific foods that set off their symptoms. The most commonly reported triggers are spicy and fried foods (roughly half of patients), followed closely by tea and caffeinated drinks. Citrus fruits, carbonated beverages, and milk also make the list for many people. But triggers vary from person to person, so paying attention to your own pattern matters more than following a generic list of “foods to avoid.”
Beyond what you eat, when and how much you eat plays a surprisingly large role. Eating smaller, more frequent meals instead of three large ones keeps your stomach from overfilling, which is one of the most common mechanical causes of indigestion. If nighttime symptoms are your main problem, stop eating at least three hours before bed. There’s a straightforward physical reason: lying down with a full stomach makes it easier for acid to travel back up into the esophagus.
Body Position Makes a Real Difference
If indigestion hits at night, sleeping on your left side can reduce symptoms noticeably. The anatomy is simple: in that position, your stomach sits below your esophagus, so gravity works in your favor and acid is less likely to creep upward. Sleeping on your right side does the opposite, positioning the stomach above the junction where it meets the esophagus.
Elevating the head of your bed by a few inches (using a wedge pillow or blocks under the bedframe legs) adds another layer of protection. Propping yourself up with regular pillows is less effective because it tends to bend you at the waist rather than creating a true incline, which can actually increase pressure on the stomach.
Peppermint Oil and Other Non-Drug Options
Enteric-coated peppermint oil capsules are one of the more studied natural options for upper digestive discomfort. The coating is important because it allows the oil to pass through the stomach and release in the intestines, where it helps relax smooth muscle and reduce spasms. Some research supports its use for reducing cramping and discomfort, though the evidence is more modest than supplement marketing might suggest. If you try it, stick with enteric-coated versions. Uncoated peppermint oil can actually worsen heartburn by relaxing the valve between the stomach and esophagus.
Ginger is another common home remedy with some supporting evidence for nausea-related indigestion. A small amount of fresh ginger in tea or food is generally well tolerated, though large doses can cause their own stomach irritation.
Indigestion During Pregnancy
Heartburn and indigestion are extremely common in pregnancy, especially in the second and third trimesters as the growing uterus pushes upward on the stomach. Dietary and lifestyle changes are the first line of defense: smaller meals, avoiding spicy and fried foods, skipping carbonated drinks, and waiting at least two to three hours after eating before lying down. Some women find that yogurt or a glass of milk eases symptoms quickly.
Calcium-based antacids like Tums are generally considered a safe option during pregnancy, but it’s worth confirming with your provider before making them a regular habit, since not all antacid formulations are equivalent in pregnancy safety.
Signs That Something More Serious Is Going On
Most indigestion is uncomfortable but harmless. However, certain symptoms alongside indigestion warrant prompt medical attention: difficulty swallowing, blood in your stool, persistent nausea and vomiting, or unexplained weight loss. These are considered red-flag symptoms that may point to something beyond simple dyspepsia.
You should also get checked out if over-the-counter antacids aren’t helping, if you find yourself reaching for them most days, or if a treatment that used to work has stopped being effective. Chronic indigestion that doesn’t respond to basic measures sometimes signals an underlying condition like an ulcer or a bacterial infection in the stomach lining that requires a different approach entirely.