PT - JOURNAL ARTICLE ED - , TI - Uses and dangers of vitamin K drugs AID - 10.1136/dtb.1.18.70 DP - 1963 Dec 27 TA - Drug and Therapeutics Bulletin PG - 70--72 VI - 1 IP - 18 4099 - http://dtb.bmj.com/content/1/18/70.short 4100 - http://dtb.bmj.com/content/1/18/70.full SO - Drug Ther Bull1963 Dec 27; 1 AB - There is abundant evidence that phytomenadione (vitamin K1) is the only vitamin K preparation that rapidly corrects prothrombin deficiency in patients taking oral anticoagulants. Intravenous administration of vitamin K1 has however caused some serious reactions, including one death, and should be avoided when oral or intramuscular administration will serve.