TheraRadar
Data updated: Jun 28, 2026

METHYLNALTREXONE BROMIDE · Teva

Gastrointestinal Approved 2008-04-24

METHYLNALTREXONE BROMIDE is FDA-approved to treat 3 conditions (same as RELISTOR).

Source: FDA Label
2
Indications
--
Phase 3 Trials
18
Years on Market

Details

Status
Prescription
First Approved
2008-04-24
Routes
SUBCUTANEOUS
Dosage Forms
SOLUTION

METHYLNALTREXONE BROMIDE Approval History

2025
2026
Original
New Indication
New Form
Label Update
3 FDA actions from 2024 to 2025
May 2025 ORIGINAL
Update
Aug 2024 ORIGINAL
Update

What METHYLNALTREXONE BROMIDE Treats

3 indications

METHYLNALTREXONE BROMIDE is approved for 3 conditions since its original approval in 2024. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Opioid-Induced Constipation
  • Chronic Non-Cancer Pain
  • Active Cancer

Same approved indications as RELISTOR (same active ingredient).

Source: FDA Label

Teva's other novel FDA approvals

Other CDER-designated drugs from the same sponsor (2016–2025).

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Clinical Trial Registry

4 trials
Trial Sponsor ID Phase Status Title
NCT04083651 SAL-REL-2042 Ph 2, Ph 3 withdrawn A Study of Methylnaltrexone Bromide (MNTX) in Participants With Advanced Pancreatic Cancer
NCT01366326 MNTX 1109 Ph 1 completed Evaluate the Pharmacokinetics (PK) of Methylnaltrexone (MNTX) in Healthy Adult Subjects
NCT00672139 results posted 3200K1-4001 B2541006 Ph 4 completed Safety of Subcutaneous Methylnaltrexone for Opioid-Induced Constipation in Patients With Advanced Illness
NCT01004393 results posted VCC 0911 VCC 0911 Ph 2 completed Methylnaltrexone for Opioid-induced Constipation in Cancer Patients
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Active Pipeline

Pro

Ongoing clinical trials by development phase

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Key Completed Trials

Pro

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.

METHYLNALTREXONE BROMIDE FDA Label Details

Indications & Usage

METHYLNALTREXONE BROMIDE is FDA-approved to treat 3 conditions — same approved indications as RELISTOR.

Looking for the branded version?

RELISTOR

Full clinical data, patents, trials, and competitive landscape for methylnaltrexone bromide.

See RELISTOR

Data Sources

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