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Two medicines, side by side

Famotidine vs ranitidine

Famotidine and ranitidine are both labeled for acid reflux and ulcers. Drugs@FDA records approvals of famotidine since 1986 and of ranitidine since 1983.

Check it at the source: the famotidine FDA label on DailyMed (effective February 6, 2026); the ranitidine FDA label on DailyMed (effective May 1, 2026).

Highlights of the famotidine record

Famotidine (Pepcid) · label of February 6, 2026

Used for

From the label: indications

relieves heartburn associated with acid indigestion and sour stomach prevents heartburn associated with acid indigestion and sour stomach brought on by eating or drinking certain food and beverages

On the market

Earliest approval on file
October 15, 1986
Generic labelers
145 labelers
Pharmacy cost
$0.0289 per tablet

Supply and safety

Shortage
No current entry
Recalls
14

Highlights of the ranitidine record

Ranitidine (Zantac) · label of May 1, 2026

Used for

From the label: indications

Ranitidine Tablets, USP are indicated in: Short-term treatment of active duodenal ulcer. Most patients heal within 4 weeks. Studies available to date have not assessed the safety of ranitidine in uncomplicated duodenal ulcer for periods of more than 8 weeks. Maintenance therapy for duodenal ulcer patients at reduced dosage after healing of acute ulcers. […]

On the market

Earliest approval on file
June 9, 1983
Generic labelers
8 labelers
Pharmacy cost
Not in the survey

Supply and safety

Shortage
No current entry
Recalls
47

Source: FDA drug labels via openFDA (Famotidine label of February 6, 2026, Ranitidine label of May 1, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do famotidine and ranitidine differ on the record?

Both are in FDA's class histamine-2 receptor antagonists.

Generics: famotidine since 2001; ranitidine since 1997 (Drugs@FDA).

FamotidineRanitidine
Labeled forAcid reflux and ulcersAcid reflux and ulcers
Pharmacologic classHistamine-2 Receptor AntagonistHistamine-2 Receptor Antagonist
How it works (label)n/an/a
Half-life (label)n/aThe elimination half-life is 2.5 to 3 hours.
Earliest approval on file (Drugs@FDA)October 15, 1986June 9, 1983
First generic approvedApril 16, 2001July 31, 1997
Generic labelers (NDC)145 labelers8 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.0289 per tablet (Famotidine 20 mg tablet)n/a
12-month price change-2%n/a
Boxed warningNoNo
Shortage nowNo current entryNo current entry
Recalls recorded1447
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)118,838230,803
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What next?

Alternatives to famotidine
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