Clinical Research Directory

Inclusion Criteria: * Patients who voluntarily consent on the informed consent form and understand the study's purpose, methods, and so on * Males and females over the age of 19 * Patients who have been diagnosed with essential hypertension and plan to be treated with S- amlodipine or S-amlodipine/Valsartan or S-amlodipine/Valsartan/Indapamide Exclusion Criteria: The patients who meet any of the following exclusion criteria cannot participate in this study. * The patients who are contraindicated for the administration of the study drug according to the approved label * The patients who are pregnant, possibly pregnant, or lactating women = The patients who are judged by the investigator to be inappropriate for participation in this study