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Table 2 Comparison of pharmacokinetic properties of heparin and low molecular weight heparin (LMWH)

From: Arterial indications for the low molecular weight heparins

  Heparin LMWH
Bioavailability at low doses (%) 30 90
Bioavailability at high doses (%) 90 90
Low doses Cellular uptake Renal
  (saturable) (non-saturable)
High doses Renal Renal
Half-life Dose dependent Dose independent
  (30 min–4 h) (2–4 h)