Paricalcitol
Paricalcitol.JPG

CLINICAL USE

Vitamin D analogue:Treatment and prevention of secondary hyperparathyroidism associated with chronic renal failure

DOSE IN NORMAL RENAL FUNCTION

IV: Give dose every other day or post dialysis; dose is dependent on PTH levels. See SPC for detailsOral: 1–4 mcg either daily or 3×/week according to PTH levels

PHARMACOKINETICS

  • Molecular weight                           :416.6
  • %Protein binding                           :>99
  • %Excreted unchanged in urine     : 0 (16% as metabolites)
  • Volume of distribution (L/kg)       :17–25 litres (6 litres in haemodialysis patients)
  • half-life – normal/ESRD (hrs)      :15 (oral 5–7)/Unchanged

    DOSE IN RENAL IMPAIRMENT

    GFR (mL/MIN)

  • 20 to 50     : Dose as in normal renal function
  • 10 to 20     : Dose as in normal renal function
  • <10           : Dose as in normal renal function

    DOSE IN PATIENTS UNDERGOING RENAL REPLACEMENT THERAPIES

  • CAPD                :Not dialysed. Dose as in normal renal function
  • HD                     :Not dialysed. Dose as in normal renal function
  • HDF/high flux   :Unknown dialysability. Dose as in normal renal function
  • CAV/VVHD      :Not dialysed. Dose as in normal renal function

    IMPORTANT DRUG INTERACTIONS

    Potentially hazardous interactions with other drugs
  • None known

    ADMINISTRATION

    Reconstition

    Route

    IV, oral

    Rate of Administration

    Not less than 30 seconds

    Comments

    OTHER INFORMATION

    Monitor calcium and phosphate levels at least monthly, more frequently during dose titrationParicalcitol solution for injection contains 30% v/v of propyleneglycol as an excipient. Isolated cases of central nervous system depression, haemolysis, and lactic acidosis have been reported as toxic effect associated with propyleneglycol administration at high doses. Although they are not expected to be found with paricalcitol administration (as propyleneglycol is eliminated during the dialysis process), the risk of toxic effect in overdosing situations has to be taken into accountParicalcitol injection contains 20% v/v of ethanol (alcohol). Each dose may contain up to 1.3 g ethanol. Harmful for those suffering from alcoholism.



    See how to identify renal failure stages according to GFR calculation

    See how to diagnose irreversible renal disease

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