In patients with Stage 2 hypertension to determine the efficacy and safety of S-Amlodipine/Telmisartan (2.5/40mg, 2.5/80mg and 5/80mg) or S-Amlodipine monotherapy (2.5mg and 5mg) during 10 weeks.~This study is consist of placebo run-in period(2 weeks_single blind) and treatment period(10 weeks_double blind.
The aim of present study is to evaluate the efficacy and safety of two dose combination of S-Amlodipine/Telmisartan (2.5/40mg, 2.5/80mg and 5/80mg) compared with S-Amlodipine monotherapy (2.5mg and 5mg) in patients with Stage 2 hypertension.