It is not possible to make a direct comparison of side effects between temesartan and irbesartan. They do not have the same scope of application and the side effects are not exactly similar when applied to different populations. Timosartan tablets are mainly used in the treatment of essential hypertension and are effective in reducing the risk of cardiovascular attacks. The use of the drug often causes back pain, chest pain, flu-like symptoms, urinary tract infections, dizziness, visual abnormalities and other adverse reactions. Therefore, it is forbidden to use the drug for those who have an allergic reaction to the components of the drug, or for breastfeeding women, pregnant women and so on. If adverse symptoms occur, the drug should be discontinued immediately. Irbesartan is mainly used for the treatment of primary hypertension and type 2 diabetic nephropathy combined with hypertension. In the process of use can cause postural vertigo, postural hypotension, nausea, fatigue, skeletal muscle pain and other adverse reactions. Therefore, the use of the drug is prohibited for people with allergic reactions to the components of the drug, pregnant and lactating women, and in case of adverse reactions, the drug should be discontinued immediately. In the treatment of hypertension or related cardiovascular diseases, should be under the guidance of a doctor to choose the appropriate drugs to take.