praziquantel

CLINICAL USE

Treatment of tapeworm Hymenolepis nana Schistosoma haematobium worms infections

DOSE IN NORMAL RENAL FUNCTION

Tapeworm: 5–10 mg/kg after a light breakfastHymenolepis nana: 25 mg/kg Schistosomiasis: 20 mg/kg repeated after 4–6 hoursS. japonicum : 60 mg/kg in 3 divided doses on 1 day

PHARMACOKINETICS

Molecular weight :312.4

%Protein binding :80

%Excreted unchanged in urine : 80% as metabolites

Volume of distribution (L/kg) :No data

half-life – normal/ESRD (hrs) :1–1.5 (metabolites 4 hours)/Slightly increased

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 Use lower dose with caution

DOSE IN PATIENTS UNDERGOING RENAL REPLACEMENT THERAPIES

CAPD :Not dialysed. Dose as in GFR <10 mL/min

HD :Not dialysed. Dose as in GFR <10 mL/min

HDF/high flux :Unknown dialysability. Dose as in GFR <10 mL/min

CAV/VVHD :Not dialysed. Dose as in normal renal function

IMPORTANT DRUG INTERACTIONS

Potentially hazardous interactions with other drugsCarbamazepine, phenytoin, chloroquine: reduce bioavailability of praziquantelCimetidine and albendazole: increases bioavailability

ADMINISTRATION

Reconstition

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Route

Oral

Rate of Administration

–

Comments

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OTHER INFORMATION

Available on a named patient basis from Merck (Cysticide)One study did not show any adverse effects in a haemodialysis patient

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