TheraRadar
Data updated: May 26, 2026

NEOSTIGMINE METHYLSULFATE

Other Approved 2015-01-08

Neostigmine methylsulfate helps patients recover from the effects of nondepolarizing neuromuscular blocking agents used during surgery. It is used to restore muscle function by reversing the blockade caused by these medications. This treatment is typically administered to patients in the post-operative period to ensure the effects of surgical blocking agents are neutralized.

Source: FDA Label • AVET LIFESCIENCES

How NEOSTIGMINE METHYLSULFATE Works

This medication works by inhibiting cholinesterase, the enzyme that breaks down acetylcholine. By reducing this breakdown, the drug increases the amount of acetylcholine available to compete with blocking agents for binding sites. This process effectively reverses the neuromuscular blockade and allows for the return of normal muscle activity.

19
Indications
--
Phase 3 Trials
11
Years on Market

NEOSTIGMINE METHYLSULFATE Approval History

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
69 FDA actions from 2015 to 2025
Oct 2025 SUPPL
Label · Labeling
Oct 2024 SUPPL
Label · Labeling
Nov 2023 ORIGINAL
Update

What NEOSTIGMINE METHYLSULFATE Treats

1 indications

NEOSTIGMINE METHYLSULFATE is approved for 1 conditions since its original approval in 2015. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Nondepolarizing neuromuscular blockade (post-surgery)
Source: FDA Label

NEOSTIGMINE METHYLSULFATE Competitive Set

Pro

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

Direct competitors

1

Same target(s) AND same indication — head-to-head.

MoA expansion candidates

3

Same target(s), different indications — where else is this mechanism being explored?

Indication competitors

3

Same indication, different mechanism — what else might this patient receive?

Unlock 2 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.

📋

Clinical Trial Registry

2 trials
Trial Sponsor ID Phase Status Title
NCT05289323 IRB NO: 00012098 SN: 0305408 Ph 4 completed Effect of Intrathecal Neostigmine on Post-dural Puncture Headache.
NCT03587441 M335 Ph 4 completed Intrathecal Neostigmine for Prevention of PDPH
🔬

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.

NEOSTIGMINE METHYLSULFATE FDA Label Details

Indications & Usage

FDA Label (PDF)

NEOSTIGMINE METHYLSULFATE is indicated for the treatment of Nondepolarizing neuromuscular blockade (post-surgery).

Looking for the branded version?

BLOXIVERZ

Full clinical data, patents, trials, and competitive landscape for neostigmine methylsulfate.

See BLOXIVERZ

Data Sources

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