High blood pressure at night after taking antihypertensive drugs may be related to the following factors: 1. Insufficient dose of drugs; 2. Not taking long-acting drugs or improper medication method; 3. The triggers causing the increase in blood pressure are not lifted. For the above three reasons, the treatment measures are divided into the following points: 1. If the problem is that the dose of drugs is insufficient, the dose of drugs can be increased or combined with two or more drugs for combined medication treatment; 2. If short-acting drugs are used, because these drugs cannot play a lasting antihypertensive effect, it is recommended that the drugs be stopped and replaced by long-acting antihypertensive drugs, once a day. This can play a lasting antihypertensive effect and make the blood pressure stable. There are also some long-acting drugs forbidden to break open, which is the main problem of incorrect medication method, such as slow-release tablets or controlled-release tablets, break open to lose its long-acting mechanism, can not play a sustained antihypertensive effect; 3. Causes of increased blood pressure have not been lifted, such as insomnia or staying up late at night, dinner eating habits, eating high-salt food, drinking beer or coffee and other foods that can make blood pressure rise, need to Avoid these situations.