Brand Names

CalciparineĀ®. (There may be other brand names for this medication).

How is it Administered?

Your medicine may be given intravenously, which means it will be given through a tube placed in a vein, usually in your arm, wrist, hand or chest. Heparin may also be given as a subcutaneous (under the skin) injection.

What is it Used For?

Heparin is used to prevent blood clots from forming in people who have certain medical conditions or who are undergoing certain medical procedures that increase the chance that clots will form. Heparin is used to stop the growth of clots that have already formed in the blood vessels, but it cannot be used to decrease the size of clots that have already formed.

Heparin is also used in small amounts to prevent blood clots from forming in catheters that are left in veins over a period of time.

How Does it Work?

Heparin is in a class of medications called anticoagulants ('blood thinners'). It works by decreasing the ability of the blood to clot.

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