Lok Pak
- Full prescribing information from RxList.
- http://www.rxlist.com/cgi/generic3/heplock_cp.htm

Heparin
- Full prescribing information from RxList.
- http://www.rxlist.com/cgi/generic/heparin.htm

Venous Thromboembolism and Low-Molecular-Weight Heparins: New Treatment Options
- Discussion of the uses of LMW heparins in the treatment of thromboembolic events.
- http://www.medscape.com/viewprogram/304

Heparins in the New Millennium: Will Unfractionated Heparin Survive?
- A comprehensive discussion of the history and future of unfractionated heparin versus low molecular weight heparins. [Requires free Medscape membership]
- http://www.medscape.com/viewprogram/634

DrugDigest: Heparin
- Information on dosage, usage, side effects, interactions, and drug comparisons for the low molecular weight form of the drug.
- http://www.drugdigest.org/DD/DVH/Uses/0,3915,315%7CHeparin%2BInjection,00.html

Celsus
- Manufacturer of heparin and heparin-like glycosaminoglycans including Centaxarin (ardeparin sodium). Features scientific background and history.
- http://www.heparin.com/

Innohep
- Tinzaparin sodium. Features product information as well as descriptions of deep vein thrombosis and pulmonary embolisms.
- http://www.innohep.com

Centaxarin
- Ardeparin sodium. Features history and chemical data.
- http://www.heparin.com/heparin_fragments.html

Low Molecular Weight Heparins in Medicine and Anaesthesia
- Compares LMW and unfractionated heparins and offers information, uses, study results, and recommendations.
- http://www.4um.com/tutorial/currents/lmwh.htm

Low Molecular Weight Heparins
- Questions and answers from the Food and Drug Administration.
- http://www.fda.gov/medwatch/safety/1998/lovq&a.htm

Antithrombotics - Heparin
- Information and resources about the drug from KU-W MedEd Online.
- http://www2.kumc.edu/wichita/meded/cvresource/antithrombotic/heparin/