TheraRadar

Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

AMPHADASE

HYALURONIDASE
Approved 2004-10-26

Amphadase is an endoglycosidase enzyme used as an adjuvant to facilitate the administration and absorption of fluids and medications. It is indicated for use in subcutaneous fluid administration for hydration and to increase the dispersion of other injected drugs. Additionally, the agent is utilized in subcutaneous urography to improve the resorption of radiopaque agents.

Source: FDA Label • AMPHASTAR PHARM • Endoglycosidase

How AMPHADASE Works

Hyaluronidase functions as a dispersion agent by hydrolyzing hyaluronic acid, a polysaccharide found in the intercellular ground substance of connective tissue. By splitting specific glucosaminidic bonds, the enzyme temporarily decreases the viscosity of the cellular cement and increases tissue permeability. This process promotes the dispersion of injected fluids or localized transudates, thereby facilitating their absorption into the body.

Source: FDA Label
1
Indication
--
Phase 3 Trials
1
Priority Reviews
21
Years on Market

Details

Status
Prescription
First Approved
2004-10-26
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: HYALURONIDASE

AMPHADASE Approval History

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What AMPHADASE Treats

1 indications

AMPHADASE is approved for 1 conditions since its original approval in 2004. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Dehydration
Source: FDA Label

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Key Completed Trials

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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.

AMPHADASE FDA Label Details

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Indications & Usage

FDA Label (PDF)

Amphadase ® is an endoglycosidase indicated as an adjuvant: • in subcutaneous fluid administration for achieving hydration • to increase absorption and dispersion of other injected drugs • in subcutaneous urography for improving resorption of radiopaque agents 1.1 Subcutaneous Fluid Administration Amphadase ® is indicated as an adjuvant in subcutaneous fluid administration for achieving hydration. 1.2 Dispersion and Absorption of Injected Drugs Amphadase ® is indicated as an adjuvant to increase the dispersion and absorption of other injected drugs. 1.3 Subcutaneous Urography Amphadase ® is in...

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Data Sources

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