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Initial dose: 20 mg to 60 mg daily has often been given in divided daily doses but once daily administration is also possible. Improvement is usually seen in 1 to 3 weeks and control of symptoms is achieved in 1 to 2 months.
Typical maintenance dose: 5 mg to 15 mg daily.
Usual Initial dose for children: 15 mg daily.
Or as prescribed by a physician.
