How does Pradaxa work to prevent strokes and blood clots?

Pradaxa works to prevent blood clots and strokes by inhibiting a substance in the blood called thrombin. Thrombin allows the blood to coagulate (that is, to form blood clots). By inhibiting thrombin, Pradaxa reduces the tendency of blood to form clots.

Pradaxa is prescribed for people with atrial fibrillation, a condition in which a part of the heart does not beat normally, which can lead to blood clots. When a blood clot blocks blood flow to the brain, the result is a stroke. By helping to prevent blood clots, Pradaxa can help prevent strokes in people with atrial fibrillation.

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