What happens when you take too much antihypertensive drugs 1, overdose of antihypertensive drugs, resulting in blood drop too Mong, will be too low, very easy to cause hypertension, which is a very dangerous practice, especially the elderly brain blood flow has been reduced with age, a slight drop in blood pressure, there may be symptoms of cerebral ischemia, such as dizziness, chest tightness, etc., serious cases can lead to dizziness or fainting, and even life-threatening. 2, in taking diuretic class of antihypertensive drugs, if overdose, they can cause diuresis and water loss while lowering blood pressure, but the body is dehydrated, blood concentration, viscous type increase. 3, over taking antihypertensive drugs, due to excessive vasodilatation, will lead to the brittle blood vessels, and more likely to rupture. 4, taking too large a dose of antihypertensive drugs, resulting in a sudden and substantial drop in blood, which can affect the cerebral blood supply, slow blood flow, platelets and fibrin in the blood flow is easy to deposit and the formation of thrombus, can block the cerebral blood vessels caused by cerebral tissue ischemia and stroke. Which antihypertensive drugs are better 1, diuretic antihypertensive drugs This type of antihypertensive drugs, there are now two main applications in China. One is called “hydrochlorothiazide” (often called double grams or DCT), the daily application dose should not exceed 25 mg. Many small compound preparations in China, such as Zhenju antihypertensive tablets, compound antihypertensive tablets, compound Robitussin tablets, regular medicine antihypertensive tablets and Beijing 0, etc., all contain a small amount of hydrochlorothiazide. Another kind is called “indapamide”. 2, beta-blockers This type of antihypertensive drugs, we are now the most used “metoprolol” and “Bisoprolol”. In addition to the original foreign manufacturers, there is more than one generic manufacturer, each of which has a trade name for its products. Any drug with the word “Lol” at the end of the generic name belongs to beta-blockers. Generally speaking, hypertension is a chronic disease, and most patients need long-term medication to effectively control blood pressure to the target level (generally speaking, blood pressure below 140/90mmHg), which can not only reduce cardiovascular events, such as the prevention of stroke, coronary heart disease, heart failure and kidney disease, but also effectively reduce the risk of death. How do antihypertensive drugs work 1. Calcium channel blockers: Calcium channel blockers consist of a large class of chemical drugs with different structures. The common feature is to block the calcium L-type channels in the cell membranes of cardiomyocytes and vascular smooth muscle cells to relax vascular smooth muscle, reduce myocardial contractility and thus lower blood pressure. The representative drug is nifedipine. The effect is precise and rapid. 2, angiotensin-converting enzyme inhibitors: angiotensin-converting enzyme inhibitors are a large class of drugs widely used in recent years. It can reduce the production of angiotensin II, which is a strong vasoconstrictor in the body, and reduce the degradation of bradykinin, which is another vasodilator, to lower blood pressure. It is especially suitable for patients with cardiac insufficiency and diabetic nephropathy. 3, diuretics: diuretics can reduce blood volume, reduce the volume of cardiac blood excretion, and through the effect of sodium to lower blood pressure, the effect of lowering blood pressure is relatively mild, after 2-3 weeks of taking the drug can play a stable role in lowering blood pressure. It is especially suitable for the elderly systolic hypertension and hypertensive patients with combined heart failure What are the precautions for antihypertensive drugs 1, antihypertensive drugs should not be taken in haste, antihypertensive can not be too fast, should be gradual, stable antihypertensive. 2, the choice of drugs should be different from person to person, the evidence of the drug, not without the corresponding indications as the basis for the indiscriminate use of drugs. For example, if there is no abnormal urine and edema, “Thiazide” should not be used indiscriminately; if there is no tension, anxiety, tachycardia, etc., “Lore” should not be used indiscriminately. 3. The first treatment should start from single drug, small dose, and increase the drug and dose step by step. The exception is severe hypertension. 4, the combination of drugs is better than the therapeutic effect of large doses of single drugs. 5, skilled and adhere to the use of several drugs. New drugs, expensive drugs, imported drugs may not be the best. 6, the effective, the right evidence of drugs or drug combinations can not suddenly stop a kind or even suddenly stop all drugs, it is appropriate to evidence, step-by-step reduction, drug reduction. The exception is the use of the wrong drugs. The majority of patients should continue their drug therapy consistently unless it is necessary to change the treatment plan. 7, the amount of medication must be used in accordance with the prescribed dose.