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Fragmin/Heparin a low-molecular-weight heparin is a new DVT treatment. It's effective within hours, reducing complications and hospitalizations. You can do the injections at home, once or twice daily, on an outpatient basis. And because it is more consistent and predictable, it doesn't require regular blood tests. Also the duration of action of a single dose of warfarin is 2 to 5 days.

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Q: Why is fragmin used with warfarin?
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