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From Wikipedia, the free encyclopedia. Antihypertensives are a class of drugs that are used to treat hypertension (high blood pressure). Antihypertensive therapy seeks to prevent the complications of high blood pressure, such as stroke and myocardial infarction.
Primary (Essential) Hypertension. There are two broad categories of hypertension - primary (or essential) and secondary hypertension. Approximately 90-95% of patients diagnosed with hypertension have primary hypertension. Unlike secondary hypertension, there is no known cause of primary hypertension.