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Last reviewed dd mmm yyyy. Last edited dd mmm yyyy
In patients taking fixed daily dosage, steady state plasma concentrations vary widely making measurement desirable.
Therapeutic range (for 6 to 12h post dose) is 1.0 to 2.6nmol/l. Steady state occurs within 7 to 10 days (1).
Note that toxicity may occur with a level of less than 1.3nmol/l if there is hypokalaemia.
Features of toxicity include: