Route/Dosage

• PO (Adults): 75 mg/day in divided doses; may be increased up to 150 mg/day
or 50–100 mg at bedtime, may increase by 25–50 mg up to 150 mg (in hospitalized patients, may initiate with 100 mg/day, increasing total daily dose up to 300 mg).

• PO (Geriatric Patients and Adolescents): 10 mg tid and 20 mg at bedtime
or 25 mg at bedtime initially, slowly increased to 100 mg/day as a single bedtime dose or divided doses.

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