TheraRadar
Data updated: May 26, 2026

ZALEPLON

GABA A Agonists
Sleep Approved 2008-06-06

ZALEPLON is indicated for the treatment of Insomnia.

Source: FDA Label • NATCO PHARMA
4
Indications
--
Phase 3 Trials
17
Years on Market

Details

Status
Discontinued
First Approved
2008-06-06
Routes
ORAL
Dosage Forms
CAPSULE

ZALEPLON Approval History

2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
62 FDA actions from 2008 to 2024
Jun 2024 SUPPL
Label · Labeling
Dec 2019 SUPPL
Label · Labeling
Nov 2019 SUPPL
Label · Labeling

What ZALEPLON Treats

1 indications

ZALEPLON is approved for 1 conditions since its original approval in 2008. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Insomnia
Source: FDA Label

ZALEPLON Boxed Warning

COMPLEX SLEEP BEHAVIORS Complex sleep behaviors including sleep-walking, sleep-driving, and engaging in other activities while not fully awake may occur following use of zaleplon. Some of these events may result in serious injuries, including death. Discontinue zaleplon immediately if a patient experiences a complex sleep behavior (see CONTRAINDICATIONS and Complex Sleep Behaviors under WARNINGS)....

ZALEPLON Competitive Set

Pro

Three rings of competition based on shared molecular targets and treated indications.

Unlock 8 more competitors across all three rings.
Upgrade to Pro

Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to ZALEPLON

3 of 17

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

AMBIEN
ZOLPIDEM TARTRATE
1 shared
COSETTE
Shared indications:
AMBIEN CR
ZOLPIDEM TARTRATE
1 shared
COSETTE
Shared indications:
BELSOMRA
SUVOREXANT
1 shared
Merck
Shared indications:
📋

Clinical Trial Registry

3 trials
Trial Sponsor ID Phase Status Title
NCT03489304 results posted 819083 Ph 2 completed Zaleplon in HIV Patients With Depression
NCT02374567 GAP GAP-2014 Ph 3 terminated Pharmacovigilance in Gerontopsychiatric Patients
NCT01159652 63-SR-10 Ph 4 completed Hypnotic Medications and Memory: Effect of Drug Exposure During the Night
🔬

Active Pipeline

Pro

Ongoing clinical trials by development phase

Loading...

Key Completed Trials

Pro

Completed studies with published results, ranked by significance

Loading...
📊

Trial Timeline

Full development history with FDA approval milestones

|
Loading...
Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

ZALEPLON FDA Label Details

Indications & Usage

FDA Label (PDF)

ZALEPLON is indicated for the treatment of Insomnia.

⚠️ BOXED WARNING

WARNING: COMPLEX SLEEP BEHAVIORS Complex sleep behaviors including sleep-walking, sleep-driving, and engaging in other activities while not fully awake may occur following use of zaleplon. Some of these events may result in serious injuries, including death. Discontinue zaleplon immediately if a pat...

Looking for the branded version?

SONATA

Full clinical data, patents, trials, and competitive landscape for zaleplon.

See SONATA

Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.