The fastest way to relieve heartburn is with a chewable antacid, which starts neutralizing stomach acid within about 30 minutes. But several other options, from body positioning to pantry staples, can also bring relief quickly depending on what you have available.
Chewable Antacids Work Within Minutes
Over-the-counter chewable antacids are the quickest medication-based option. Calcium carbonate tablets (like Tums) and combination tablets containing aluminum hydroxide and magnesium hydroxide (like Maalox) both begin raising the pH in your esophagus within about 30 minutes. The combination tablets tend to work slightly faster and last longer in the esophagus, providing around 80 minutes of relief compared to about 60 minutes for calcium carbonate alone.
The key word here is “chewable.” Swallowable antacid tablets had little measurable effect in studies comparing formats. Chewing breaks the tablet down so it can coat and neutralize acid immediately on contact. Effervescent (fizzing) formulas also performed well, but standard pills you swallow whole are a poor choice when you want fast relief.
Alginate Products Last Longer
Alginate-based products like Gaviscon work differently from traditional antacids. Instead of just neutralizing acid, they form a physical barrier, sometimes called a “raft,” that floats on top of your stomach contents and blocks acid from splashing up into your esophagus. This raft forms within seconds of dosing, making alginates just as fast as traditional antacids for initial relief. The advantage is duration: because the raft can stay intact in your stomach for several hours, alginate formulations provide noticeably longer-lasting relief than standard antacids. Clinical studies have found Gaviscon performs equal to or better than traditional antacids for heartburn symptoms.
Baking Soda: A Pantry Fix That Works
If you don’t have antacids at home, plain baking soda (sodium bicarbonate) is a legitimate antacid. Dissolve half a level teaspoon in four ounces of water and drink it after the powder is completely dissolved. You can repeat this every two hours if needed.
There’s one important catch: each half-teaspoon dose contains 716 mg of sodium, which is roughly a third of the daily recommended limit. If you’re watching your sodium intake or managing high blood pressure, this isn’t a good regular solution. It’s fine as an occasional rescue remedy, but not something to rely on repeatedly.
Change Your Position Right Now
If heartburn hits while you’re lying down, how you position your body makes a real difference. Lying on your left side places your esophagus above the level of your stomach, so gravity works in your favor to keep acid where it belongs. Lying on your right side does the opposite, positioning your esophagus below the junction where your stomach meets it, which lets acid pool and linger in the esophagus longer. A systematic review of clinical trials confirmed that left-side sleeping significantly improves reflux symptoms.
Elevating your head and upper body also helps. Propping up with a wedge pillow or raising the head of your bed keeps gravity pulling acid downward. Stacking regular pillows can work in a pinch, though a wedge is more effective because it elevates your entire torso rather than just bending your neck.
Ginger Can Help With Mild Symptoms
Ginger root has a legitimate mechanism behind it. Its active compounds interact with receptors in the digestive tract that control stomach motility, helping your stomach empty faster. Since delayed stomach emptying can worsen reflux by keeping acid-producing food sitting in your stomach longer, speeding that process up reduces the opportunity for acid to push upward. Ginger tea, fresh ginger slices steeped in hot water, or even chewing on a small piece of candied ginger may ease mild symptoms. It won’t act as quickly as an antacid, but it’s a reasonable option when you’re dealing with low-grade burning rather than intense pain.
Why Pepcid Takes Longer to Kick In
If you’re reaching for an H2 blocker like famotidine (Pepcid), know that it won’t help right away. These medications reduce how much acid your stomach produces, but they take about 90 minutes to start working, three times longer than a chewable antacid. The tradeoff is duration: famotidine’s effects last around nine hours compared to roughly one hour for calcium carbonate. H2 blockers are better suited for preventing heartburn you know is coming, like taking one before a heavy meal, rather than putting out a fire that’s already started. If you need both fast and lasting relief, taking a chewable antacid alongside an H2 blocker covers both timelines.
Quick Habits That Make a Difference
Beyond what you take or how you lie down, a few immediate actions can keep heartburn from getting worse:
- Loosen your clothing. Tight waistbands and belts increase pressure on your stomach, pushing acid upward.
- Stay upright. If you’ve just eaten, don’t lie down for at least two to three hours. Standing or sitting keeps gravity on your side.
- Sip cool water. A few sips can help wash acid back down from your esophagus into your stomach and dilute what’s there.
- Stop eating. This sounds obvious, but if you’re mid-meal when the burning starts, continuing to eat will only increase acid production.
Chest Pain That Isn’t Heartburn
Heartburn and heart attacks can feel surprisingly similar. The burning or pressure sits in the same general area of your chest. One practical distinction: heartburn is usually relieved by antacids. If you take an antacid and the discomfort doesn’t budge, pay attention to what else you’re feeling. Heart attack symptoms typically include pressure or squeezing pain that spreads to your neck, jaw, or arms, along with shortness of breath, cold sweat, or sudden dizziness. Any combination of those symptoms, especially if they come on suddenly during physical activity or stress, warrants calling emergency services rather than reaching for another antacid.