Enter the patient's body weight, then click the CALCULATE button.
The recommended dose of human rabies immune globulin (HRIG) is 20 IU/kg body weight. This formula is applicable to all age groups, including children. No more than the recommended dose should be given.
Body weight (lb)
Body weight (kg)
IU/kg body weight20
IU/mL of KEDRAB150
mL of KEDRAB needed
Number of 2-mL†vials needed
Number of 10-mL‡vials needed
*Only administer the dose required (mL) calculated in step 2 above.
†Filled to a range of 2.3 to 2.5 mL.
‡Filled to a range of 10.7 to 10.9 mL.