PROPHYLAXIS OF VENOUS THROMBO-EMBOLISM DURING SURGERY :- 2500 UNITS GIVEN BY SUBCUTANEOUS INJ. 1 TO 2 HOURS BEFORE SURGERY, FOLLOWED BY 2500 UNITS ONCE DAILY FOR 5 TO 7 DAYS. PATIENTS AT HIGH RISK - 2500 UNITS GIVEN 1 TO 2 HOURS BEFORE AND 8 TO 12 HOURS AFTER THE PROCEDURE FOLLOWED BY 5000 UNITS DAILY.
FOR ESTABLISHED DEEP-VEIN THROMBOSIS :- 200 UNITS/KG/BODY WT. DAILY AS A SINGLE DOSE, OR IN PATIENTS HIGHER RISK OF BLEEDING, IN 2 DIVIDED DOSES. MAXIMUM :- 18000 UNITS DAILY.
PREVENTION OF CLOTTING IN THE EXTRACORPOREAL CIRCULATION :- 30-40 UNITS/KG FOLLOWED BY I.V. INFUSION OF 10 TO 15 UNITS/KG/HOURS.
UNSTABLE ANGINA :- 120 UNITS/KG 12 HOURS. MAXIMUM :- 10000 UNITS EVERY 12 HOURS FOR 5 TO 8 DAYS.