Chlorophacinone intoxication. A biological and toxicological study.

Plasma chlorophacinone determinations were performed in three cases of intoxication. The data collected in this study confirm the particularly prolonged anticoagulant effect of this compound and show that the knowledge of plasma concentrations may be very useful for clinicians since it allows to confirm the diagnosis and to evaluate the duration of the treatment. The determination of half-lives was investigated and the results indicate that the greater the quantity absorbed, the longer the half-life. The effect of phenobarbital on the elimination of cholorophacinone could be studied in one case. An increased elimination was noted when phenobarbital was administered.