Validation of a Hypertension Education Program

Inclusion Criteria: * \> 21 years of age * Primary arterial hypertension * Office blood pressure between 140/90 mmHg and 160/100 mmHg Exclusion Criteria: * Participation in another clinical study * Unstable clinical condition * Secondary arterial hypertension * Dementia * Major disability (modified Rankin-Scale \> 4) * Severe chronic kidney disease (serum creatinine \> 2.0 mg/dL or estimated glomerular filtration rate \< 40 ml/min/1.73m2) * Liver disease including history of hepatic encephalopathy, esophageal varices or portacaval shunt * History of gastrointestinal operation or disease with a potential influence on drug absorption * Allergy or other contraindications against drugs given during the study * History of non-compliance