What is MEZLIN used for?

MEZLIN is an FDA-approved medication. See full prescribing information for approved uses.

Is MEZLIN FDA approved?

Yes, MEZLIN is FDA approved (first approved 1981-09-21) and manufactured by Bayer.

MEZLIN is manufactured by Bayer.

Data updated: Mar 10, 2026

MEZLIN

MEZLOCILLIN SODIUM MONOHYDRATE

Approved 1981-09-21

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Indication

Phase 3 Trials

Years on Market

Details

Status: Discontinued
First Approved: 1981-09-21
Routes: INJECTION
Dosage Forms: INJECTABLE

Companies

Bayer

Active Ingredient: MEZLOCILLIN SODIUM MONOHYDRATE

MEZLIN Approval History

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What MEZLIN Treats

1 FDA approvals

Originally approved for its first indication in 1981 .

Other (1)

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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

ClinicalTrials.gov ↗ Pro

Full development history with FDA approval milestones

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.

MEZLIN FDA Label Details

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Data Sources

FDA Approval: ANDA062333 → Patents: FDA Orange Book → Trials: ClinicalTrials.gov →

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