Thromb Haemost 1969; 21(01): 320-324
DOI: 10.1055/s-0038-1653541
Originalarbeiten - Original Articles - Travaux Originaux
Schattauer GmbH

Intoxication with Phenprocoumon (Marcoumar) Pharmacokinetics and Side Effects

K Seiler
1  Blood Coagulation and Fibrinolysis Laboratory (Head: Dr. F. Duckert) of the University Department of Medicine (Head: Prof .Dr. F .Koller), Bürgerspital, Basel, Switzerland
,
F Duckert
1  Blood Coagulation and Fibrinolysis Laboratory (Head: Dr. F. Duckert) of the University Department of Medicine (Head: Prof .Dr. F .Koller), Bürgerspital, Basel, Switzerland
› Author Affiliations
Further Information

Publication History

Publication Date:
10 June 2018 (online)

Summary

A case of severe Marcoumar intoxication is described. Eleven hours after the intake a plasma concentration of 15.75 µg/ml was found which corresponds approximately to the 5-fold therapeutic concentration. Repeated administration of vitamin K1 made it possible to avoid extreme lowering of the activity of the clotting factors II, VII and X and to prevent bleeding. Side effects were not observed. The biologic half-life of Phenprocoumon has been found to be shortened at high plasma concentration (3.7 instead of 5.9 days). It is probable that in extreme concentration the drug is less strongly bound to the plasma proteins.