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Hizentra
immune globulin (human)
Black Box Warnings .
Thrombosis
may occur w/ immune globulin products; risk factors incl. advanced age, prolonged immobilization, hypercoagulable conditions, venous or arterial thrombosis hx, estrogen use, indwelling central vascular catheter, hyperviscosity, and cardiovascular dz risk; thrombosis may occur in pts w/o risk factors; use minimum dose and infusion rate practicable in pts at risk; ensure adequate hydration before admin; monitor for s/sx thrombosis and assess blood viscosity in pts w/ hyperviscosity risk
Adult Dosing .
Dosage forms: INJ (pre-filled syringe): 1 g per 5 mL, 2 g per 10 mL, 4 g per 20 mL, 10 g per 50 mL; INJ (vial): 1 g per 5 mL, 2 g per 10 mL, 4 g per 20 mL, 10 g per 50 mL
Special Note
- [uses, dosing may vary]
- Info: refer to institution protocols and pkg insert prior to prescribing
primary immunodeficiency
- [frequent dosing (2-7x/wk)]
- Dose: frequent SCIG dose = [last IVIG dose (g) x 1.37] divided by last IVIG dosing interval (wk) divided by the desired number of doses per wk; Start: 3mo after receiving immune globulin at regular intervals, and 1wk after receiving last IVIG or SCIG dose; Alt: divide last weekly SCIG dose by the desired number of doses per wk; Info: adjust dose based on trough IgG levels and clinical response; give 400 mg/kg/dose SC x1 ASAP if measles exposure; give minimum total weekly dose 200 mg/kg/wk SC x2wk if measles exposure risk
- [weekly dosing]
- Dose: weekly SCIG dose = [last IVIG dose (g) x 1.37] divided by last IVIG dosing interval (wk); Start: 3mo after receiving immune globulin at regular intervals, and 1wk after receiving last IVIG or SCIG dose; Alt: maintain previous weekly SCIG dose; Info: adjust dose based on trough IgG levels and clinical response; give 400 mg/kg/dose SC x1 ASAP if measles exposure; give minimum dose 200 mg/kg/dose SC qwk x2wk if measles exposure risk
- [biweekly dosing (q2wk)]
- Dose: biweekly SCIG dose = weekly SCIG dose x2; Start: 3mo after receiving immune globulin at regular intervals, and 1-2wk after receiving last IVIG dose or 1wk after receiving last weekly SCIG dose; Info: adjust dose based on trough IgG levels and clinical response; give 400 mg/kg/dose SC x1 ASAP if measles exposure; give minimum dose 400 mg/kg/dose SC x1 if measles exposure risk
chronic inflammatory demyelinating polyneuropathy
- [200-400 mg/kg/total dose SC divided over 1-2 days, given qwk]
- Start: 1wk after last IVIG dose
renal dosing
- [see below]
- renal impairment: not defined, consider lower, more frequent dosing
- HD/PD: not defined
hepatic dosing
- [not defined]
Peds Dosing .
- Dosage forms: INJ (pre-filled syringe): 1 g per 5 mL, 2 g per 10 mL, 4 g per 20 mL, 10 g per 50 mL; INJ (vial): 1 g per 5 mL, 2 g per 10 mL, 4 g per 20 mL, 10 g per 50 mL
Special Note
- [uses, dosing may vary]
- Info: refer to institution protocols and pkg insert prior to prescribing
primary immunodeficiency
- [frequent dosing (2-7x/wk), 2 yo and older]
- Dose: frequent SCIG dose = [last IVIG dose (g) x 1.37] divided by last IVIG dosing interval (wk) divided by the desired number of doses per wk; Start: 3mo after receiving immune globulin at regular intervals, and 1wk after receiving last IVIG or SCIG dose; Alt: divide last weekly SCIG dose by the desired number of doses per wk; Info: adjust dose based on trough IgG levels and clinical response; give 400 mg/kg/dose SC x1 ASAP if measles exposure; give minimum total weekly dose 200 mg/kg/wk SC x2wk if measles exposure risk
- [weekly dosing, 2 yo and older]
- Dose: weekly SCIG dose = [last IVIG dose (g) x 1.37] divided by last IVIG dosing interval (wk); Start: 3mo after receiving immune globulin at regular intervals, and 1wk after receiving last IVIG or SCIG dose; Alt: maintain previous weekly SCIG dose; Info: adjust dose based on trough IgG levels and clinical response; give 400 mg/kg/dose SC x1 ASAP if measles exposure; give minimum dose 200 mg/kg/dose SC qwk x2wk if measles exposure risk
- [biweekly dosing (q2wk), 2 yo and older]
- Dose: biweekly SCIG dose = weekly SCIG dose x2; Start: 3mo after receiving immune globulin at regular intervals, and 1-2wk after receiving last IVIG dose or 1wk after receiving last weekly SCIG dose; Info: adjust dose based on trough IgG levels and clinical response; give 400 mg/kg/dose SC x1 ASAP if measles exposure; give minimum dose 400 mg/kg/dose SC x1 if measles exposure risk
renal dosing
- [see below]
- renal impairment: not defined, consider lower, more frequent dosing
- HD/PD: not defined
hepatic dosing
- [not defined]