Heparin Standards

Heparin is a naturally occurring carbohydrate that is isolated from the mucosal tissues of pig intestines. Fondaparinux, enoxaparin, and dalteparin are synthetically manufactured anticoagulants, with the latter two classified as low molecular-weight heparins. These drugs are used to prevent harmful blood clots that can lead to strokes or pulmonary embolisms.

USP offers documentary and reference standards for a variety of heparin products that can help speed their development and ensure their safety and efficacy during commercial manufacturing.

USP Heparin Families

Please click on the Heparins you are interested in to learn more.

Heparin family

The USP Heparin family includes:

Anticoagulant Heparin Solution family

The USP Anticoagulant Heparin Solution family includes:

Antithrombin III Human standards

The USP Antithrombin III Human family includes:

Protamine standards

The USP Protamine family includes:

Dalteparin family

The USP Dalteparin family includes:

Enoxaparin family

The USP Enoxaparin family includes:

Fondaparinux family

The USP Fondaparinux family includes:

Products & Resources


Scientific articles

Online courses

Regulatory Information

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General Chapters

Supporting Heparin or Heparin-Related Development and Manufacturing

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USP Reference Tables

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