Famotidine was not taken off the market. It remains FDA-approved and widely available both over the counter (as Pepcid AC) and by prescription in 10 mg, 20 mg, and 40 mg tablets. The confusion almost certainly stems from the 2020 removal of ranitidine (Zantac), a closely related heartburn medication that was pulled due to a cancer-causing contaminant. Because both drugs belong to the same class and treat the same conditions, many people understandably mix them up.
Why Ranitidine Was Removed Instead
In April 2020, the FDA requested that all ranitidine products be withdrawn from the U.S. market. The reason was NDMA, a chemical classified as a probable human carcinogen. Testing revealed that ranitidine’s molecular structure was inherently unstable: the drug could break down into NDMA over time, especially when stored at higher temperatures. This wasn’t a manufacturing error that could be fixed. It was a fundamental problem with ranitidine itself.
The FDA specifically tested famotidine and other alternatives during this investigation. The agency found no NDMA in famotidine (Pepcid), cimetidine (Tagamet), or any of the common proton pump inhibitors like omeprazole (Prilosec) or esomeprazole (Nexium). Famotidine has a different chemical structure that does not carry the same contamination risk, which is why it stayed on the market while ranitidine did not.
Why Brand-Name Pepcid Tablets Show as “Discontinued”
Adding to the confusion, the brand-name prescription version of Pepcid (the 20 mg and 40 mg tablets) does appear on the FDA’s “Discontinued Drug Product List.” This sounds alarming but has a routine explanation. The FDA formally determined in January 2022 that Pepcid tablets were not withdrawn for reasons of safety or effectiveness. The original manufacturer simply stopped producing the brand-name prescription version, likely for business reasons. Generic famotidine tablets remain fully approved and available from multiple manufacturers, and new generic applications continue to be accepted.
The over-the-counter product, Pepcid AC, has remained continuously on store shelves.
Famotidine Shortages After the Zantac Recall
When ranitidine disappeared overnight, millions of patients needed an alternative. Famotidine was the most obvious substitute, and demand surged far beyond what manufacturers had prepared for. This created real supply problems that lasted well into 2021. At some points, famotidine 20 mg and 40 mg tablets were only available from a single supplier, with all other manufacturers listed as out of stock.
Hospitals felt the pinch most acutely. Some had to restrict famotidine to cancer patients and other high-risk groups while supplies were limited. For people who walked into a pharmacy during this period and found empty shelves, it could easily have looked like the drug had been pulled. It hadn’t. Production simply couldn’t keep pace with the sudden spike in demand. Supply has since stabilized.
Specific Lot Recalls Are Not Market Withdrawals
Famotidine has been subject to a small number of voluntary lot-level recalls over the years, which is normal for any widely manufactured medication. One notable example involved Fresenius Kabi recalling three specific lots of injectable famotidine (the hospital IV form, not the tablets you buy at a pharmacy) due to bacterial contamination found in reserve samples. The affected lots were numbered 6133156, 6133194, and 6133388. Some patients who received product from one of those lots reported symptoms like fever, chills, and shaking, though all reported events were classified as non-serious.
These kinds of targeted recalls happen regularly across the pharmaceutical industry for issues like labeling errors, contamination in a single production run, or packaging defects. They involve pulling specific batches, not removing a drug from the market entirely. The distinction matters: a recall of three lots of injectable famotidine is fundamentally different from the complete market withdrawal that happened with ranitidine.
Famotidine’s Current Availability
You can buy famotidine today at virtually any pharmacy or grocery store in the United States. The 10 mg and 20 mg strengths are available without a prescription as Pepcid AC and store-brand equivalents. The 20 mg and 40 mg strengths are available by prescription in generic form. It remains one of the most commonly recommended treatments for heartburn, acid reflux, and stomach ulcers, and it continues to be considered safe by the FDA with no NDMA contamination concerns.