Blood, 1953, Vol. 8, No. 3, pp. 276-281.
© 1953 American Society of Hematology, Inc.
Studies on the Anticoagulant Phenylindanedione
I. The Effect of Emulsified Vitamin K1 on Phenylindanedione-Induced Hypoprothrombinemia
CHARLES G. GUTTAS M.D.1,
WILLIAM C. MOLONEY M.D.1, and
HERBERT S. SISE M.D.1
1 Clinical Research Laboratory, First and Third Medical Services (Tufts),
Boston City Hospital and the Department of Medicine, Tufts College School of Medicine,
Boston, Mass.
1. Phenylindanedione-induced hypoprothrombinemia is rapidly counteracted
by a vitamin K1 emulsion. This hypoprothrombinemia is antagonized at a more
rapid rate than that induced by any of the other commonly employed prothrombopenic agents.
2. The optimum dose of the vitamin K1 emulsion in emergency is 5 mg. per
Kg. Since a refractoriness to the prothrombopenic action of phenylindanedione
ensues, smaller doses should be used in situations where there is to emergency.
Submitted on September 29, 1952
Accepted on October 28, 1952