Yes, these three are among the six classic antihypertensive drugs. Sartan is an angiotensin receptor antagonist, Dipine is a calcium channel antagonist, and Itan is a diuretic. agent. Your high blood pressure has reached level 2. I don’t know if there are other risk factors. The doctor has given you a combination of three medicines. During the medication, you should also pay attention to monitoring your blood pressure. It is best to have a blood pressure monitor at home. If you have headaches, dizziness, tinnitus, etc. You should quickly measure yourself. If your blood pressure is high, you will have to temporarily take short-acting antihypertensive drugs. Otherwise, a hypertensive crisis will be very serious.