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Table 1 Skin prick testing with UFH, LMWHs, heparinoids and fondaparinux

From: Allergic anaphylaxis due to subcutaneously injected heparin

Drug tested Wheal diameter [mm]
Heparin-sodium 25.000 I.E./ml 3
Nadroparin (Fraxiparin™) 9.500 I.E./ml 4
Dalteparin (Fragmin™) 12.500 I.E./ml 0
Enoxaparin (Clexane™) 10.000 I.E./ml 6 and pseudopodes
Danaparoid (Orgaran™) 1.250 I.E./ml 3
Pentosan polysulfate (Fibrezym™) 100 mg/ml 0
Fondaparinux (Arixtra™) 5 mg/ml 4
Sodium chloride 0.9% solution 0
Histamine 10 mg/ml 5
  1. Reading at 20 minutes. Each test was performed with the undiluted heparin preparations, i.e. the pure therapeutic heparin solution.