For occasional acid reflux, an over-the-counter antacid like calcium carbonate (Tums, Rolaids) or magnesium hydroxide (Maalox, Mylanta) will neutralize stomach acid and provide relief within minutes. If reflux happens more than twice a week, you likely need a stronger medication that reduces acid production rather than just neutralizing it. The right choice depends on how often your symptoms occur, how severe they are, and how quickly you need relief.
Antacids: Fast Relief for Occasional Symptoms
Antacids work by directly neutralizing the acid already in your stomach. They’re the fastest option, often kicking in within minutes, but the relief is short-lived. Calcium-based antacids like Tums and Rolaids are the most widely used. Magnesium-based options like Maalox and Mylanta are also popular for their speed. These are fine for the occasional bout of heartburn after a heavy meal, but they aren’t designed for daily use or for managing persistent reflux.
H2 Blockers: Medium-Strength, Longer-Lasting
H2 blockers reduce acid production by blocking histamine receptors in the stomach. Famotidine (sold as Pepcid) is the most common one available over the counter. It takes one to three hours to start working, so it’s not as immediate as an antacid, but relief lasts about eight hours. That makes H2 blockers a better fit if you get reflux predictably, like every evening. You can take them before a meal you know will trigger symptoms.
For GERD, famotidine is typically taken at 20 mg twice daily (morning and bedtime) for up to six weeks. An over-the-counter tablet contains less medication per dose than the prescription version, so if your symptoms aren’t controlled, a doctor can prescribe a higher-dose form.
Proton Pump Inhibitors: The Strongest OTC Option
Proton pump inhibitors (PPIs) like omeprazole (Prilosec) and esomeprazole (Nexium) block the stomach’s acid-producing pumps directly. They suppress acid for 15 to 21 hours per day, far longer than H2 blockers. The trade-off is speed: PPIs can take up to four days of daily use before you feel the full effect. They’re meant for people with frequent reflux, not for popping when heartburn strikes after dinner.
OTC PPIs are generally labeled for 14-day courses, and most packaging recommends no more than three of these courses per year without medical guidance. That’s because long-term PPI use carries some health considerations worth knowing about.
Risks of Long-Term PPI Use
PPIs are among the most prescribed medications in the world, and for many people the benefits clearly outweigh the risks. But extended use over months or years has been linked to increased fracture risk. A large meta-analysis found PPI users had a 30% higher risk of fractures at any site compared to nonusers, with spine fractures showing the strongest association (49% higher risk). Interestingly, PPI use doesn’t appear to cause bone mineral density loss directly, so the mechanism isn’t fully understood.
Kidney health is another concern. PPIs are associated with both acute kidney injury and chronic kidney disease. One systematic review estimated that for every 27 people using PPIs, one additional case of acute kidney injury could be expected, and for every 20 users, one additional case of chronic kidney disease. Over half of patients who develop PPI-related kidney inflammation don’t fully recover. These aren’t reasons to panic if you need a PPI, but they are reasons to use the lowest effective dose for the shortest time that controls your symptoms.
Alginate-Based Products: A Physical Barrier
Alginates take a completely different approach. Instead of changing acid levels, products like Gaviscon mix with your stomach acid to form a gel-like raft that floats on top of your stomach contents. This physical barrier keeps acid from splashing up into your esophagus. Alginates work well for reflux that hits right after eating or when lying down, and they can be combined with other treatments since they don’t affect acid production.
Prescription Options for Severe Reflux
If over-the-counter medications aren’t enough, prescription options are available. Higher-dose PPIs and H2 blockers are the standard first step. Beyond those, a newer class of drugs called potassium-competitive acid blockers (P-CABs) offers more potent acid suppression than traditional PPIs, acts faster, and doesn’t need to be taken before meals. However, the American Gastroenterological Association recommends P-CABs mainly for people with severe erosive damage to the esophagus or those who still have symptoms after taking a PPI twice daily. Cost and limited long-term safety data mean they aren’t a first-line choice for most people.
Lifestyle Changes That Actually Help
Medications work best when paired with a few simple habit changes. Stop eating three to four hours before bed. This single adjustment prevents the most common trigger for nighttime reflux: lying down with a full stomach. Elevating the head of your bed by about six inches (using a wedge or bed risers, not just extra pillows) helps gravity keep acid where it belongs.
Losing weight, if you carry extra weight around the midsection, reduces the pressure pushing stomach contents upward. Common dietary triggers include coffee, alcohol, tomato-based foods, chocolate, and high-fat meals, though triggers vary from person to person. Tracking which foods cause your symptoms is more useful than following a generic elimination list.
What About Apple Cider Vinegar and Ginger?
Apple cider vinegar is one of the most commonly recommended home remedies online, but there is no published research in medical journals supporting its use for heartburn. Harvard Health has noted the complete absence of clinical data on this, despite its popularity. Adding acid to an already acidic situation can potentially make things worse, so it’s not a reliable strategy.
Reflux During Pregnancy
Heartburn is extremely common during pregnancy, especially in the second and third trimesters. Antacids are considered the safest first option since they coat the esophagus and neutralize acid without being absorbed in significant amounts. H2 blockers are also generally considered safe, though most guidelines suggest avoiding them during the first trimester as a precaution. If you’re pregnant and antacids aren’t enough, talk to your OB about which stronger options make sense for your situation.
Choosing the Right Approach
Your best starting point depends on your pattern. Heartburn once or twice a month after specific meals calls for antacids or an alginate product you can take as needed. Symptoms a few times a week respond well to an H2 blocker taken before your usual trigger time. Daily or near-daily reflux that disrupts sleep or eating typically warrants a two-week course of a PPI. If symptoms don’t improve after that course, or if you’ve been relying on over-the-counter acid reducers for more than a few months, a doctor can check for underlying causes and tailor a longer-term plan.
Difficulty swallowing, unintentional weight loss, or symptoms that don’t respond to initial treatment are signs that something beyond simple reflux may be going on and warrant further evaluation.