Initially 1mg (0.5mg in the elderly) at night for four nights increasing over 2-4 weeks to a usual maintenance dose of 4-8 mg daily in divided doses.
Serum half-life is 16-40 hours therefore administration is bd or tds.
For comprehensive details on the use of this drug, see BNF 4.8.1.
The summary of product characteristics should be consulted before prescribing this drug.
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