High blood pressure medication does not contain carcinogenic substances. There was once a news report that valsartan tablets contain carcinogenic substances, in fact, it is not contained in the drug, but only one of the batches of raw materials failed to meet the standard, resulting in the production of carcinogenic substances in the production process of the drug. However, at that time, the domestic valsartan are no problem, this is nothing more than a chance event, after this incident, the national control of drug safety will be more secure. After layers of safety checks, the quality of the drug will be more over the issue, it is recommended that there is no need to worry about this and do not take antihypertensive drugs. If high blood pressure is not well controlled, it will induce a variety of complications, which will seriously affect the quality of life, and may even jeopardize one’s life.