Your doctor will likely take two to three blood pressure readings at separate appointments before confirming their diagnose. Some blood and urine tests may also be performed to determine the risk of other problems. Then, they may prescribe medication to lower your blood pressure to help control high blood pressure, such as thiazide diuretics, angiotensin II receptor blockers (ARBs), angiotensin-converting enzyme (ACE) inhibitors, and calcium channel blockers. The category of medication your doctor gives you depends on your general health and your blood pressure readings.