hyoscine butylbromide

CLINICAL USE

Symptomatic relief of gastrointestinal or genitourinary disorders due to smooth muscle spasm

DOSE IN NORMAL RENAL FUNCTION

Oral: 20 mg 4 times a day Irritable bowel syndrome: 10 mg 3 times a day, increasing to 20 mg 4 times a day if requiredIV/IM: 20 mg repeated after 30 minutes if required; maximum 100 mg daily

PHARMACOKINETICS

Molecular weight :440.4

%Protein binding :10

%Excreted unchanged in urine : 1–2

Volume of distribution (L/kg) :No data

half-life – normal/ESRD (hrs) :8

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 :Dialysed. Dose as in normal renal function

HD :Dialysed. Dose as in normal renal function

HDF/high flux :Dialysed. 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

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Route

Oral, IV, IM

Rate of Administration

–

Comments

–

OTHER INFORMATION

Only 2–8% of oral dose is absorbed

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