Olmesartan as an add-on to Amlodipine in Hypertension

Add-on Study of Olmesartan Medoxomil in Patients With Moderate to Severe Hypertension Not Achieving Target Blood Pressure on Amlodipine 5 mg Alone

This study is to test the efficacy and safety of the combination of olmesartan and amlodipine in hypertensive patients whose blood pressure is not adequately controlled with amlodipine alone

Inclusion Criteria:

• Without antihypertensive pre-treatment mean seated BP greater than 160/100 mmHg
• Pre-treatment with amlodipine 5 or 10 mg: mean seated BP greater than or equal to 140/90 mmHg

Exclusion Criteria:

• Secondary hypertension
• Any serious disorder which may limit the ability to evaluate the efficacy or safety of the test drugs