If you have heartburn or GERD, you may be wondering which medications work best and how to choose the right one.
There are several treatment options available, including over-the-counter and prescription medications that work in different ways to control symptoms. The right choice depends on how often you have symptoms and how severe they are.
We spoke with Wahid Wassef, MD, a gastroenterologist with Banner – University Medicine, about the most common types of GERD medications and how they compare.
What is the best medication for GERD?
The best medication depends on how often you have symptoms and how severe they are. Antacids, H2 blockers and proton pump inhibitors (PPIs) all work differently, and your provider can help you choose the right option.
Antacids vs. H2 blockers vs. PPIs
These medications differ in how quickly they work and how long they last:
- Antacids: Fast relief, short-term effect
- H2 blockers: Slower onset, longer-lasting relief
- PPIs: Most powerful, long-lasting acid control
Antacids (quick relief for occasional symptoms)
Antacids work quickly to relieve mild symptoms. “Antacids neutralize the acid content of the stomach,” Dr. Wassef said. “They are not very strong, and they act for a short period of time.”
You can buy antacids without a prescription. They contain common active ingredients, such as calcium carbonate, aluminum hydroxide and magnesium hydroxide, that help neutralize the acid in your stomach.
Antacids can treat your symptoms, although they don’t treat the underlying cause of your heartburn or reflux. They can be a good choice if you get heartburn every so often, but if you’re taking them more than two or three times weekly, you should talk to your health care provider.
Side effects from antacids are minor. Types that contain calcium can cause constipation and types that contain magnesium can cause diarrhea.
Common antacid brands include:
- Alka-Seltzer
- Di-Gel
- Milk of Magnesia
- Mylanta
- Tums
H2 blockers (longer-lasting symptom control)
H2 blockers (histamine H2-receptor antagonists) don’t just neutralize stomach acid like antacids do. They also reduce the amount of acid your stomach produces to give you more long-lasting relief.
“H2 blockers work by blocking the histamine channels in some of your stomach cells. They don’t completely block all acid production, but they are stronger than antacids and will last longer in the stomach,” Dr. Wassef said.
H2 blockers usually start to work 30 to 90 minutes after you take them. Many people take them with their first meal of the day. Some people also take a second dose with their evening meal or at bedtime.
You can buy OTC lower-dose H2 blockers. If you’re taking them most days for two weeks or longer, talk to your provider. You may need a prescription-strength version. Your provider may also want to evaluate you to be sure it’s GERD that is causing your symptoms and not another condition.
If you take medications for other health conditions, talk to your provider or a pharmacist before taking H2 blockers. H2 blockers can interact with other medications, so your provider may need to adjust your doses.
Side effects are usually minor. They can include diarrhea, constipation, fatigue, drowsiness, headache or muscle aches.
Common H2 blocker brands include:
- Pepcid (famotidine)
- Tagamet (cimetidine)
- Zantac (ranitidine)
Proton pump inhibitors (strongest GERD medications)
Proton pump inhibitors (PPIs) give you more powerful acid suppression. The proton pumps in your stomach produce acid, and PPIs limit how much they can make.
“PPIs are the strongest GERD medicines available. They completely stop all acid production in the stomach and last for up to 12 hours,” Dr. Wassef said.
Like antacids and H2 blockers, you can buy some types of PPIs over the counter. If you’re taking them on most days, talk to your provider. A prescription version might be a better choice.
PPIs can cause problems with vitamin D absorption and bone metabolism. If you need to take them for a long time, your provider might recommend vitamin D supplements.
Other side effects of PPIs are usually minor and can include headache, rash, dizziness, nausea, abdominal pain, flatulence, constipation and diarrhea. The risk of side effects increases the longer you use PPIs.
Common PPI brands include:
- Nexium (esomeprazole)
- Prevacid (lansoprazole)
- Prilosec (omeprazole)
How long do GERD medications take to work?
Antacids work within minutes, H2 blockers may take 30 to 90 minutes and PPIs can take several days to reach full effectiveness.
Can you take more than one GERD medication?
If you need to, you can take more than one of these medications to treat your GERD symptoms. For example, adding an H2 blocker to a PPI may give you better acid control and reduce nighttime acid symptoms. Or an antacid may help relieve symptoms before an H2 blocker starts to work.
Be sure to talk to your provider before combining different medications. Your provider can optimize your dose and recommend timing — some of these medications may not work as well if you take them too close together.
Lifestyle changes that can help GERD
Lifestyle changes can also help reduce the symptoms of GERD. It’s a good idea to steer clear of foods that can trigger reflux, such as caffeine, citrus, tomatoes and alcohol. Eating smaller meals more often may help, as will losing weight.
You can also raise the head of your bed to reduce symptoms while you sleep, take steps to reduce stress and add some mild or moderate physical activity to your routine.
When should you see a doctor for GERD?
“If you have heartburn symptoms once a week or less, or only when eating certain foods or meals, OTC medications will probably be sufficient,” Dr. Wassef said. But if you’re having symptoms most days or every day, you’ll want to see an expert.
“Be smart. If the symptoms are not responding to OTC medication, seek medical help. You may need stronger medications, or you may have a different condition that is mimicking the symptoms of GERD,” he said.
A provider can come up with a treatment plan that’s best for you. You’ll want to follow up with them regularly to make sure your symptoms are under good control.
Frequently asked questions about GERD medications
What is the best medication for GERD?
It depends on your symptoms. PPIs are often used for more severe cases.
Are GERD medications safe long term?
Some can be used long term under medical supervision, but risks vary.
Can you take GERD medication every day?
Some medications are designed for daily use, but you should talk to your provider.
What happens if GERD is not treated?
Untreated GERD can lead to complications such as esophagitis or Barrett’s esophagus.
The bottom line
GERD medications can effectively control symptoms, but choosing the right one depends on how often your symptoms occur and how severe they are.
Antacids may work well for occasional relief, while H2 blockers and proton pump inhibitors (PPIs) provide longer-lasting control for more frequent or severe symptoms. Your health care provider can help you choose the best option and determine whether you need one medication or a combination approach.
Other useful articles
- 9 Possible Causes for Stomach Pain and How to Treat Them
- Heartburn, Acid Reflux and GERD: When Should You Worry?
- Heartburn Drugs: Do the Benefits Outweigh the Risks?
Content in this article was updated on April 14, 2026.
