Public record

Zolpidem: the public record

7 tables from US federal sources. Latest data date: Nov 11, 2026.

Each table is computed from the named federal dataset as of its data date; the method is under each one.

Label

FDA label facts for zolpidem

The FDA label read for zolpidem (zolpidem tartrate, application NDA215721) was last revised on 2025-10-09. It carries a boxed warning headed "WARNING: COMPLEX SLEEP BEHAVIORS". Of the 4 population sections checked, 4 are present: pregnancy, lactation, pediatric use, geriatric use.

FDA label facts for zolpidem: the figures
MeasureValueNote
Label revision date2025-10-09
Label readzolpidem tartrateNDA215721, brand-name application
Boxed warningYesheading as printed: "WARNING: COMPLEX SLEEP BEHAVIORS"
Pregnancy sectionPresent
Lactation sectionPresent
Pediatric use sectionPresent
Geriatric use sectionPresent

Source: FDA drug label via openFDA, viewable on NIH DailyMed, data as of Nov 11, 2026

How this was calculated

Selected the most recently revised prescription label for this single ingredient from an original manufacturer, preferring a brand-name application. Checked which sections exist and quoted headings and sentences exactly as printed.

Scope: One label: the newest prescription label for single-ingredient zolpidem from an original manufacturer

Read from one label. Labels for other brands, strengths or forms of the same ingredient can differ. A missing section heading does not mean there is no guidance. Read the full label before relying on it.

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Approvals

FDA approval history for zolpidem

The earliest FDA approval on file for a zolpidem product is 1992-12-16. Drugs@FDA lists 43 applications for it and 229 approved supplements, the most recent on 2025-01-14.

FDA approval history for zolpidem: the figures
MeasureValueNote
Earliest FDA approval on file1992-12-16
Applications with an approval on file43
New drug applications (NDA)7
Generic applications (ANDA)36
Approved supplements229label, manufacturing and efficacy changes
Most recent supplement approval2025-01-14
Sponsoring companies37

Source: FDA, Drugs@FDA, data as of Nov 11, 2026

How this was calculated

Selected applications with a product whose only active ingredient is this substance, then counted approved original and supplemental submissions. The earliest approved original submission is the first approval.

Scope: Applications with a single-ingredient zolpidem product in Drugs@FDA, all sponsors and strengths

Older approvals can be missing dates, and tentative approvals are not counted. An approved application does not mean the product is currently marketed.

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Patents and generics

Patents and generic approvals for zolpidem

The FDA Orange Book lists 36 approved generic applications for zolpidem, the first approved on 2007-04-23. 5 listed patents on specific brand products have not yet expired, the last on 2032-08-07; generics of other versions are already approved.

Patents and generic approvals for zolpidem: the figures
MeasureValueNote
Brand-name applications (NDA)7
Approved generic applications (ANDA)36first approved 2007-04-23
Companies with a generic not marked discontinued12
Listed patents not yet expired5
Latest listed patent expiry2032-08-07on any product; may cover only one brand formulation
Earliest approval date on file1992-12-16
Products not marked discontinued34 of 83

Source: FDA, Orange Book (Approved Drug Products with Therapeutic Equivalence Evaluations), data as of Oct 9, 2026

How this was calculated

Selected Orange Book products whose only active ingredient is this substance, then counted applications by type and the distinct patents and exclusivities listed against them. Expired patents are left out.

Scope: All single-ingredient zolpidem products in the Orange Book, every brand and strength, files dated 2026-10-09

An approved generic or an expired patent does not show that a generic is on sale. Launch timing also depends on litigation, settlements and supply. Biologics and compounded products are not in the Orange Book.

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Medicare Part D

Medicare Part D spending on zolpidem

Medicare Part D spending on zolpidem products was $77.8M in 2024 across 7,940,675 claims, compared with $94.8M in 2023 (-17.9%). Average spending per claim was $9.80, before rebates.

Medicare Part D spending on zolpidem: the figures
MeasureValueNote
Total spending, 2024$77.8M
Total spending, 2023$94.8M
Change in spending, 2023 to 2024-17.9%
Claims (prescription fills), 20247,940,675
Average spending per claim, 2024$9.80
Zolpidem Tartrate*: spending, 2024$50.1M7,548,054 claims
Zolpidem Tartrate ER: spending, 2024$10.9M371,133 claims
Ambien: spending, 2024$10.4M13,186 claims

Source: CMS, Medicare Part D Spending by Drug, data as of 2024

How this was calculated

Summed total spending and claims over every brand and generic row with this generic name in the CMS file, using the Overall manufacturer rows. Combination products excluded. Average per claim is spending divided by claims.

Scope: Every single-ingredient zolpidem product in Part D (Zolpidem Tartrate*, Zolpidem Tartrate ER, Ambien), 2024.

Gross drug cost before manufacturer rebates, so net cost is lower. Part D excludes some uses by law (for example erectile dysfunction, weight loss and hair growth), so claims reflect covered uses only. Compounded products are not included.

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Adverse event reports

Most reported events in FDA adverse event reports for zolpidem

Through 2026-10-28, FDA had received 83,038 adverse event reports for zolpidem, 56,489 of them marked serious by the reporter. The symptom terms named most often were fatigue (5,203), nausea (4,837) and headache (3,788).

Most reported events in FDA adverse event reports for zolpidem: the figures
MeasureValueNote
All reports received83,038
Reports the reporter marked serious56,489death, hospitalisation, disability or similar outcome
Fatigue5,203 reports
Nausea4,837 reports
Headache3,788 reports
Pain3,682 reports
Diarrhoea3,674 reports

Source: FDA Adverse Event Reporting System (FAERS) via openFDA, data as of Oct 28, 2026

How this was calculated

Counted FAERS reports listing this active substance, then the reaction terms named most often. A report can name several reactions, and a term can describe the illness being treated and not an effect of the drug. Terms about product use or complaints rather than symptoms (for example drug ineffective) were left out of the list.

Scope: Reports where FDA recorded zolpidem as a single-ingredient active substance (any brand), all years to 2026-10-28

FAERS reports are unverified and do not prove the drug caused the event. Reporting rises with use, publicity and lawsuits, so these counts cannot give rates or risks and cannot be compared between drugs.

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Recalls

FDA drug recalls naming zolpidem

FDA enforcement reports list 10 drug recall entries naming zolpidem from 2012 to 2024-01-31. 8 of them are for compounded or other unlisted products and 2 for products FDA lists under a label. The most common stated reason was manufacturing practice deviations (3 of 10).

FDA drug recalls naming zolpidem: the figures
MeasureValueNote
Recall entries on record10
For products FDA lists under an approved or registered label2
For compounded or other unlisted products8matched by the name in the product description
Class I (most serious)0
Class II8
Class III2
Most recent recall reported2024-01-31
Most common stated reasonmanufacturing practice deviations3 of 10 entries

Source: FDA, Enforcement Reports (drug recalls) via openFDA, data as of Nov 10, 2026

How this was calculated

Counted enforcement report entries matched by FDA's listed active substance, or by the name in the product description where FDA lists none. Reasons were grouped by keywords in FDA's stated reason.

Scope: Recalls of single-ingredient zolpidem products, plus compounded or unlisted products whose description names it

Each recall covers specific lots from one firm and is not a statement about every product with this ingredient. One event can appear as several entries, one per product.

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Clinical studies

Registered clinical studies of zolpidem

ClinicalTrials.gov lists 153 registered studies that name zolpidem as an intervention as of 2026-11-11. Of these, 8 are recruiting, 115 are completed and 25 are phase 3 studies.

Registered clinical studies of zolpidem: the figures
MeasureValue
Registered studies153
Recruiting now8
Not yet recruiting5
Completed115
Terminated, withdrawn or suspended11
Phase 3 (including phase 2/3)25
Phase 2 (including phase 1/2)20
Phase 135

Source: NIH National Library of Medicine, ClinicalTrials.gov, data as of Nov 11, 2026

How this was calculated

Searched the ClinicalTrials.gov intervention field for the name, downloaded every matching record and counted by overall status and phase. Combined phases are counted under the higher phase. Phase not applicable covers observational, device and behavioural studies.

Scope: Studies whose intervention field matches zolpidem, any condition, any country, all statuses

A registered study is not a result. Counts include studies where the drug is a comparator or background treatment, and studies that never finished or reported.

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Articles on Zolpidem