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Blood clots can cause severe and life-threatening problems.
1 Vitamin D Heparin may interfere with activation of vitamin D in the body. Digitalis refers to a group of plants commonly called foxglove, which contains chemicals related to the drug digoxin . Digitalis may interfere with the anticoagulant action of heparin, reducing its action. 6 People receiving heparin should avoid digitalis and digitalis-containing products. Digitalis should only be used under the direct supervision of a doctor trained in its use.