A blood pressure of 90/60 mmHg after three consecutive days of antihypertensive medication is excessive. However, if it is only an occasional measurement and the blood pressure is 90/60mmHg, then it can be temporarily observed. If the blood pressure stabilizes at 90/60mmHg after taking antihypertensive drugs, then the dose or type of antihypertensive drugs need to be reduced under the medical advice of a professional doctor. The goal of blood pressure reduction for hypertensive people taking antihypertensive drugs is to keep the blood pressure below 140/90mmHg. If the patient also has diabetes, the blood pressure should be controlled below 130/80mmHg. This is because too low a blood pressure will reduce the blood perfusion to the vital tissues and organs of the body, thus causing accidents such as cerebral ischemia or myocardial ischemia. After taking antihypertensive drugs, if symptoms such as dizziness, nausea and blurred vision occur, you should consult a doctor promptly.