TheraRadar
Data updated: May 26, 2026

NALOXONE HYDROCHLORIDE AND PENTAZOCINE HYDROCHLORIDE (naloxone hydrochloride)

Trial Activity: Declining 2 active trials
Pain Approved 1997-01-21

NALOXONE HYDROCHLORIDE AND PENTAZOCINE HYDROCHLORIDE is indicated for the treatment of Pain.

Source: FDA Label • Lupin

Development Insights

National Institute on Drug Abuse (NIDA) conducting 3 trials (12%)
39 indications explored (Broad Platform)
pain (2 trials)
virtual reality (2 trials)
placebo (2 trials)
3
Indications
--
Phase 3 Trials
29
Years on Market

Details

Status
Prescription
First Approved
1997-01-21
Routes
ORAL
Dosage Forms
TABLET

NALOXONE HYDROCHLORIDE AND PENTAZOCINE HYDROCHLORIDE Approval History

1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
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
42 FDA actions from 1997 to 2026
Jan 2026 SUPPL
Label · Labeling
Dec 2025 SUPPL
Label · Labeling
Dec 2025 SUPPL
Label · Labeling

What NALOXONE HYDROCHLORIDE AND PENTAZOCINE HYDROCHLORIDE Treats

1 indications

NALOXONE HYDROCHLORIDE AND PENTAZOCINE HYDROCHLORIDE is approved for 1 conditions since its original approval in 1997. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Pain
Source: FDA Label

NALOXONE HYDROCHLORIDE AND PENTAZOCINE HYDROCHLORIDE Boxed Warning

SERIOUS AND LIFE-THREATENING RISKS FROM USE OF PENTAZOCINE AND NALOXONE TABLETS Addiction, Abuse, and Misuse Because the use of Pentazocine and Naloxone Tablets exposes patients and other users to the risks of opioid addiction, abuse, and misuse, which can lead to overdose and death, assess each patient's risk prior to prescribing and reassess all patients regularly for the development of these behaviors and conditions [ see <WARNINGS ]. Life-Threatening Respiratory Depression Serious, life-thre...

NALOXONE HYDROCHLORIDE AND PENTAZOCINE HYDROCHLORIDE Competitive Set

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

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DIFGEN PHARMS
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Clinical Trial Registry

4 trials
Trial Sponsor ID Phase Status Title
NCT07459166 CS-1103-03 5UG3DA059286 Ph 2 not yet recruiting A Phase 2 Safety, Tolerability, PK, and Efficacy Study of CS-1103 Following Fentanyl Challenge With Naloxone Blockade
NCT04828005 results posted OPNT003-PD-001 Ph 1 completed Pharmacodynamic Evaluation of Intranasal Nalmefene
NCT04473950 results posted Z-1902 R21DA047520 Ph 1 terminated The Effect of Chronic Pain on Delay Discounting in Methadone Patients
NCT05338632 ROAR P21.112 Ph 1 recruiting Reversal of Opioid-induced Respiratory Depression With Opioid Antagonists
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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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.

NALOXONE HYDROCHLORIDE AND PENTAZOCINE HYDROCHLORIDE FDA Label Details

Indications & Usage

NALOXONE HYDROCHLORIDE AND PENTAZOCINE HYDROCHLORIDE is indicated for the treatment of Pain.

⚠️ BOXED WARNING

WARNING: SERIOUS AND LIFE-THREATENING RISKS FROM USE OF PENTAZOCINE AND NALOXONE TABLETS Addiction, Abuse, and Misuse Because the use of Pentazocine and Naloxone Tablets exposes patients and other users to the risks of opioid addiction, abuse, and misuse, which can lead to overdose and death, assess...

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Data Sources

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

How We Calculate These Metrics

Trial Activity Stage

Measures the current development activity pattern based on trial phases, status, and trends. Important: This measures R&D activity, not commercial lifecycle.

Trial statuses: "Active" means recruiting or ongoing. "Completed" means reached planned endpoint. "Terminated" means stopped early—often due to safety, efficacy, or business reasons.

  • Growth: High proportion of early-phase trials (Phase 1/2), active development
  • Expansion: Significant Phase 3 activity, approaching or pursuing approvals
  • Mature: Substantial Phase 4 post-marketing studies
  • Stable: Mixed phase distribution, steady development
  • Declining: Low active trial ratio, reduced R&D investment