The fastest way to stop acid reflux is to take an over-the-counter antacid containing calcium carbonate or aluminum/magnesium. These neutralize stomach acid on contact and bring relief within minutes. But antacids aren’t your only option, and the best approach depends on whether you need immediate relief right now or a strategy that prevents the next episode.
Antacids: The Fastest Over-the-Counter Option
Antacids work by directly neutralizing the acid already in your stomach. Products like Tums (calcium carbonate) or Maalox take effect faster than any other reflux medication because they don’t need to be absorbed into your bloodstream first. The tradeoff is that their effects are short-lived, typically lasting 30 to 60 minutes.
If you want something that lasts longer, H2 blockers like famotidine (Pepcid) reduce the amount of acid your stomach produces. They take about an hour to kick in, but the relief holds for several hours. Proton pump inhibitors like omeprazole (Prilosec) are the most powerful acid reducers, but they need one to four days to reach full effect. They’re not designed for in-the-moment relief.
Alginate Products Create a Physical Barrier
Alginate-based products like Gaviscon work differently from standard antacids. When the alginate hits your stomach acid, it forms a foamy, gel-like raft that floats on top of your stomach contents. This raft acts as a physical barrier between the acid pool and your esophagus, either blocking reflux entirely or moving into the esophagus ahead of the acid during a reflux episode. It’s especially useful after meals, when reflux is most common, because the raft sits right at the junction where your esophagus meets your stomach.
Position Changes That Work Immediately
If you’re lying down when reflux hits, sit upright or stand. Gravity alone helps pull acid back down into your stomach. Elevating your head and chest by about six inches when you sleep (using a wedge pillow, not just stacking pillows) keeps your esophagus above your stomach throughout the night.
When you do lie down, choose your left side. In that position, your esophagus and the muscular ring at its base sit higher than your stomach, which lets acid drain out of the esophagus faster. Lying on your right side does the opposite: it positions the stomach above that junction and makes reflux worse.
Chewing Gum After Meals
This one sounds too simple, but it works through a real mechanism. Chewing sugar-free gum increases how often you swallow, and each swallow pushes a small wave of saliva (which is naturally alkaline) down into the esophagus. This clears acid that has already refluxed and dilutes what remains. Research from King’s College London found that chewing gum for 30 minutes after a meal significantly improved acid clearance from the esophagus. It won’t stop a severe episode, but it’s a surprisingly effective tool after eating.
Ginger for Stomach Emptying
Ginger may help by speeding up gastric emptying, the process of moving food from your stomach into your small intestine. Once food leaves your stomach, the organ produces less acid, which reduces the chance of it splashing back up. You can use fresh ginger steeped in boiling water for 15 minutes as a tea, grate it raw into food, or take it as a supplement. It’s a gentler option that works best as a preventive measure rather than a rescue remedy during a flare.
Baking Soda: A Home Remedy With Limits
Dissolving baking soda (sodium bicarbonate) in water creates a basic solution that neutralizes stomach acid quickly. The Mayo Clinic lists the adult dose as one to two and a half teaspoons in a glass of cold water after meals, with a maximum of five teaspoons per day. It works, but it comes with important caveats.
Baking soda is high in sodium, which causes your body to retain water. That makes it a poor choice if you have high blood pressure, heart disease, kidney disease, or liver disease. It should not be given to children under six without a doctor’s guidance. Don’t take it with large amounts of milk, and avoid it entirely if you have abdominal pain, bloating, or vomiting that could signal something more serious than reflux.
What to Avoid During a Flare
Some common habits make reflux worse in real time. Lying down within two to three hours of eating allows stomach contents to press against the esophageal sphincter. Tight clothing around your midsection increases abdominal pressure. Eating large meals stretches the stomach and weakens that same sphincter. Chocolate, alcohol, coffee, citrus, tomato-based foods, and carbonated drinks are frequent triggers, though individual responses vary. During an active episode, avoiding these gives your other interventions a better chance of working.
Why Quick Fixes Can Backfire Long-Term
If you’re reaching for antacids or acid reducers daily, that pattern itself can become a problem. Proton pump inhibitors, when used for extended periods and then stopped, can cause rebound acid hypersecretion. Your stomach responds to the prolonged suppression by overproducing acid once the medication is removed, creating symptoms that feel the same as (or worse than) the original reflux. This creates a cycle where the treatment itself drives the need for more treatment.
Frequent reflux that doesn’t respond to lifestyle changes or occasional antacids is worth investigating. The American College of Gastroenterology identifies several symptoms that signal possible damage: difficulty swallowing or feeling like food is stuck behind your chest, vomiting blood or material that looks like coffee grounds, black or tarry stools, unexplained weight loss, or chronic hoarseness and coughing from acid reaching the airway. Any of these warrants prompt medical evaluation rather than another round of over-the-counter relief.