Chlorosartan potassium tablets and amlodipine tablets can enhance the antihypertensive effect as well as prolong the duration of antihypertensive effect after combined use. 1. Chlosartan Potassium Tablets: belongs to renin angiotensin active drugs, which can block the vasoconstriction, water-sodium retention and remodeling of angiotensin II receptor, thus exerting the effect of lowering blood pressure. It is mainly used for the treatment of primary hypertension and other diseases. The drug may cause fatigue, palpitations, dizziness and other discomforts after taking it. It is contraindicated for those who are allergic to the components of the drug. In the course of taking the drug, attention should be paid to angioedema, hypotension, electrolyte disorders, etc. Regular monitoring of liver and kidney functions is also required. Pregnant women, lactating women, children need to use the drug under the guidance of a doctor. 2. Amlodipine: belongs to dihydropyridine drugs, after taking it, it can reduce the extracellular calcium ions into the vascular smooth muscle cells, and reduce the contraction response of resistance vessels. It is mainly used in the treatment of primary hypertension, chronic stable angina and other diseases. Usually the drug causes edema, drowsiness, hypotension, insomnia and other discomforts after taking it. It is contraindicated for those who are allergic to dihydropyridines, severe aortic stenosis. Blood pressure, liver and kidney functions need to be monitored during the course of taking the drug, while children and the elderly need to use the drug under the guidance of a doctor. Chlorosartan potassium tablets and amlodipine are both antihypertensive drugs, if taking a single antihypertensive drug to control blood pressure is not satisfactory, you can use the above two drugs in combination, so as to enhance the effect of lowering blood pressure and prolonging the time of lowering blood pressure, the specific combination of drugs need to be decided under the guidance of a doctor.