Adult, adolescent & childn >70 kg Initiate at a total daily dose of 40 mg & increased after a min of 3 days to approx 80 mg. Dose may be increased after 2-4 additional wk to a max of 100 mg. Adolescent & childn up to 70 kg Initiate at a total daily dose of 0.5 mg/kg & increased after a min of 3 days to 1.2 mg/kg. Dose may be increased after 2-4 additional wk to a max of 1.4 mg/kg or 100 mg, whichever is less. Patient w/ moderate hepatic impairment Initial & target doses should be reduced to 50% of the normal dose. Patient w/ severe hepatic impairment Initial & target doses should be reduced to 25% of the normal dose. Adult, adolescent & childn >70 kg administered w/ strong CYP2D6 inhibitors Initiate at 40 mg/kg/day & only increase to 80 mg/day. Adolescent & childn up to 70 kg administered w/ strong CYP2D6 inhibitors Initiate at 0.5 mg/kg/day & only increased to 1.2 mg/kg/day.
Hypersensitivity. Symptomatic CV disease (ie, moderate to severe HTN; atrial fibrillation & flutter; ventricular tachycardia, fibrillation & flutter; advanced arteriosclerosis. Severe cardiac or vascular disorders. Uncontrolled hyperthyroidism. Existing or history of phaeochromocytoma. Concurrent use w/ MAOI. Narrow angle glaucoma.
Monitor for suicidal ideation & behaviour in childn & adolescents, appearance or worsening of aggressive behaviour or hostility. Possible allergic events. Patients w/ history of seizures. Measure heart rate & BP prior to treatment, after the dose is increased or decreased & periodically during treatment. Patients w/ HTN, tachycardia, CV or cerebrovascular disease, congenital, acquired, or has a family history of QT prolongation, any condition that may predispose patients to orthostatic hypotension or conditions associated w/ abrupt heart rate or BP changes. Not to be used in patients w/ severe CV disorders whose condition would be expected to deteriorate, w/ known structural cardiac abnormalities. Increased risk of sudden/cardiac death. Patients w/ enlarged prostates or conditions predisposing to urinary retention. Seek prompt medical attention if priapism is suspected. Periodic monitoring of height & wt for patients requiring long-term therapy. Discontinue in patients w/ jaundice or laboratory evidence of liver injury. Hepatic & renal impairment. May affect the ability to drive or operate machinery. Pregnancy & lactation. Childn <6 yr. Elderly >65 yr.
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