Summer is coming, some patients will start or have started to stop their own medication, this is not right, especially the hypertensive patients taking a variety of antihypertensive drugs more dangerous! Summer because of vasodilatation of blood pressure will be reduced, but many hypertensive patients take a variety of antihypertensive drugs, especially like diphenhydramine, satanic drugs itself is a long-acting preparations, long-term medication after 1-2 days may not have too much change in blood pressure, but many patients are complacent not to take drugs and do not test blood pressure, so the danger and tragedy also happened. Therefore, it is recommended that hypertensive patients with blood pressure below 110/70 mmHg cut one of their medications in half and monitor their blood pressure, consulting with your doctor if necessary.