imidapril hydrochloride

CLINICAL USE

Angiotensin-converting enzyme inhibitor:Hypertension

DOSE IN NORMAL RENAL FUNCTION

2.5–20 mg once daily

PHARMACOKINETICS

Molecular weight :441.9

%Protein binding :85

%Excreted unchanged in urine : 9 (as imidaprilat)

Volume of distribution (L/kg) :No data

half-life – normal/ESRD (hrs) :2/Increased (>24 hours as imidaprilat)

DOSE IN RENAL IMPAIRMENT

GFR (mL/MIN)

20 to 50 : Initially 2.5 mg daily and adjust according to response

10 to 20 : Initially 2.5 mg daily and adjust according to response

<10 : Initially 2.5 mg daily and adjust according to response

DOSE IN PATIENTS UNDERGOING RENAL REPLACEMENT THERAPIES

CAPD :Probably dialysed. Dose as in GFR <10 mL/min

HD :Dialysed. Dose as in GFR

<10 : mL/min

HDF/high flux :Dialysed. Dose as in GFR

<10 : mL/min

CAV/VVHD :Probably dialysed. Dose as in GFR 10 to 20 mL/min

IMPORTANT DRUG INTERACTIONS

Potentially hazardous interactions with other drugs

Anaesthetics: enhanced hypotensive effect

Analgesics: antagonism of hypotensive effect and increased risk of renal impairment with NSAIDs; hyperkalaemia with ketorolac and other NSAIDs

Ciclosporin: increased risk of hyperkalaemia and nephrotoxicity

Diuretics: enhanced hypotensive effect; hyperkalaemia with potassium-sparing diuretics

Epoetin: increased risk of hyperkalaemia; antagonism of hypotensive effect

Lithium: reduced excretion, possibility of enhanced lithium toxicity

Potassium salts: increased risk of hyperkalaemia

Tacrolimus: increased risk of hyperkalaemia and nephrotoxicity

ADMINISTRATION

Reconstition

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Route

Oral

Rate of Administration

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Comments

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OTHER INFORMATION

Imidapril is a prodrug, rapidly converted to the active imidaprilatHyperkalaemia and other side effects are more common in patients with impaired renal functionClose monitoring of renal function during therapy is necessary in those with renal insufficiencyRenal failure has been reported in association with ACE inhibitors with renal artery stenosis, post renal transplant or congestive heat failureHigh incidence of anaphylactoid reactions have been reported in patients dialysed with high-flux polyacrylonitrile membranes and treated concomitantly with an ACE inhibitor – combination should therefore be avoided

See how to identify renal failure stages according to GFR calculation

See how to diagnose irreversible renal disease

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