33 A multicentre, randomised, double-blind, active-controlled, parallel-group trial showed normalisation of blood pressure (trough sitting diastolic blood pressure < 90 mmHg at the end of the trial) in patients not adequately controlled on amlodipine 10 mg in 78% of patients treated with amlodipine/ valsartan 10 mg/ 160 mg, compared to 67% of patients remaining on amlodipine 10 mg.