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Two medicines, side by side

Metoclopramide vs famotidine

Metoclopramide and famotidine are both labeled for acid reflux and ulcers. Drugs@FDA records approvals of metoclopramide since 1979 and of famotidine since 1986. Pharmacies paid $0.0439 per metoclopramide 10 mg tablet and $0.0289 per famotidine 20 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. In FDA's classes, metoclopramide is a dopamine-2 receptor antagonist and famotidine a histamine-2 receptor antagonist.

Check it at the source: the metoclopramide FDA label on DailyMed (effective May 18, 2026); the famotidine FDA label on DailyMed (effective February 6, 2026).

Highlights of the metoclopramide record

Metoclopramide (Reglan) · label of May 18, 2026

Boxed warning

TARDIVE DYSKINESIA

Metoclopramide, including metoclopramide tablets, can cause tardive dyskinesia (TD), a potentially irreversible serious movement disorder. In patients treated with metoclopramide, including metoclopramide tablets, the risk of developing TD increases with duration of treatment and total cumulative dosage [see Warnings and Precautions ( 5.1 )].

Metoclopramide tablets are contraindicated in patients with a history of TD.

Used for

From the label: indications

Metoclopramide Tablets USP are indicated for the: • Treatment for 4 to 12 weeks of symptomatic, documented gastroesophageal reflux in adults who fail to respond to conventional therapy. • Relief of symptoms in adults with acute and recurrent diabetic gastroparesis. […]

On the market

Earliest approval on file
February 7, 1979
Generic labelers
39 labelers
Pharmacy cost
$0.0439 per tablet

Supply and safety

Shortage
No current entry
Recalls
10

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

Source: FDA drug labels via openFDA (Metoclopramide label of May 18, 2026, Famotidine label of February 6, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do metoclopramide and famotidine differ on the record?

In FDA's classes, metoclopramide is a dopamine-2 receptor antagonist and famotidine a histamine-2 receptor antagonist.

Only the metoclopramide label carries a boxed warning.

Generics: metoclopramide since 1985; famotidine since 2001 (Drugs@FDA).

MetoclopramideFamotidine
Labeled forAcid reflux and ulcers, Nausea and vomitingAcid reflux and ulcers
Pharmacologic classDopamine-2 Receptor AntagonistHistamine-2 Receptor Antagonist
How it works (label)Metoclopramide stimulates motility of the upper gastrointestinal tract without stimulating gastric, biliary, or pancreatic secretions.n/a
Half-life (label)The mean elimination half-life in subjects with normal renal function was 5 to 6 hours.n/a
Earliest approval on file (Drugs@FDA)February 7, 1979October 15, 1986
First generic approvedJuly 29, 1985April 16, 2001
Generic labelers (NDC)39 labelers145 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.0439 per tablet (Metoclopramide 10 mg tablet)$0.0289 per tablet (Famotidine 20 mg tablet)
12-month price change-11%-2%
Boxed warningYesNo
Shortage nowNo current entryNo current entry
Recalls recorded1014
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)76,710118,838
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 metoclopramide
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