The Heartburn Aisle: Antacid, H2 Blocker or 14-Day PPI?

Heartburn medicines fill a whole shelf: chewable tablets, liquids, small “acid reducer” pills and 14-day packs. They aren’t interchangeable. Here is what each type does, what the labels say about how long to use them, and the warnings to read first.

The three types

Type	What it does	Best for	Note
Antacids	Neutralize acid already there	Mild, occasional symptoms1	NIDDK advises against daily use or use for severe symptoms without talking to your doctor1
H2 blockers	Lower how much acid the stomach makes1	Ask a pharmacist about timing and dose	Help heal the esophagus, though not as well as PPIs1
Proton pump inhibitors (PPIs)	Lower acid production1	Frequent heartburn, 2 or more days a week2	Not for immediate relief; can take 1 to 4 days for full effect2

The 14-day rule on over-the-counter PPIs

The standard label for over-the-counter omeprazole tells you to take one tablet before eating in the morning, once a day for 14 days, and not to repeat a 14-day course more than once every 4 months unless a doctor directs you.² Stop and ask a doctor if heartburn continues or worsens, or if you need treatment longer than 14 days or more often than every 4 months.²

If you find yourself buying another pack sooner, that’s the label telling you it’s time for a visit.

Read the “do not use” box first

The PPI label says not to use it, and to see a doctor, if you have:²

• Trouble or pain swallowing food, vomiting blood, or bloody or black stools
• Heartburn with lightheadedness, sweating or dizziness
• Chest or shoulder pain with shortness of breath, sweating, pain spreading to your arms, neck or shoulders, or lightheadedness
• Frequent chest pain

Some of these signs can point to a heart problem rather than heartburn. If you have chest pain with any of them, call 911 rather than reaching for an antacid.

The label also says to ask a doctor first if you’ve had heartburn for more than 3 months, frequent wheezing with heartburn, unexplained weight loss, nausea or vomiting, or stomach pain.² NIDDK lists vomit that looks like coffee grounds, black tarry stools, swallowing problems, weight loss and chest pain as reasons to see a doctor.³

Check your other medicines

The label notes acid reducers may interact with certain prescription drugs, so ask a doctor or pharmacist before using one if you take prescription medicines.²

Habits that help

NIDDK suggests raising the head of your bed 6 to 8 inches, quitting smoking, losing weight if you’re overweight, and changing eating habits.¹

Try: “I’ve been using an over-the-counter acid reducer more often than the label allows. What’s causing my heartburn, and what should I take long term?”

Bloated by Dinner includes a Belly Clock log and a Test-It list with a visit script. Use them to track when heartburn hits, what you ate and what you took, then bring it to your visit. See the book.