Generic name of Daiwen is valsartan capsule, and the high blood pressure in the afternoon after taking the medicine is considered to be related to the short time of taking the medicine, insufficient dosage of the medicine, and physiological elevation of blood pressure. 1. Short medication time: if the patient just took valsartan capsules after lunch, then start measuring blood pressure, can be due to the drug is not fully absorbed, the efficacy of the drug has not been played, and the phenomenon of high blood pressure after the drug is still high. 2. Insufficient dosage: for some unauthorized reduction in the dosage of valsartan capsules, the blood pressure can not be effectively controlled, inducing the phenomenon of high blood pressure in the afternoon after the use of drugs. 3. Physiological blood pressure: the body’s blood pressure value is easy to fluctuate with exercise, diet, emotional changes, circadian rhythm changes, etc., if the patient in the afternoon after strenuous exercise, eating or emotional fluctuations in the measurement of blood pressure, there will be a high blood pressure in the afternoon after the use of medication phenomenon, mostly in the appropriate rest, adjust the mood after relief. It is recommended that people with high blood pressure in the afternoon after taking medication exclude physiological factors, and consult a doctor for examination if necessary, so as to clarify the cause of the disease and then adjust the dosage of medication or change other medications as prescribed by the doctor.