High blood pressure medication does not work considerations and drug dose is insufficient, the drug type is too small or incorrect choice of drugs and bad life habits and so on. 1. Insufficient drug dosage: When some hypertensive patients are treated with one antihypertensive drug, the drug dosage is insufficient, which may lead to unsatisfactory blood pressure control, and at this time, the drug dosage or frequency can be increased under the guidance of doctors, which can effectively achieve the effect of lowering blood pressure. 2. Too few types of drugs: some patients with high blood pressure levels, it is difficult to use a single antihypertensive drug to achieve good results, at this time can be combined with other types of antihypertensive drugs, such as taking amlodipine patients can be added under the guidance of the doctor valsartan for treatment, can reduce blood pressure. 3. Incorrect choice of drugs: some hypertensive patients for secondary hypertension, such as nephrotic syndrome and other diseases, the increase in blood pressure is often difficult to be treated by ordinary antihypertensive drugs, you can choose a receptor blocker for treatment, common drugs, including terazosin, etc., and at the same time, need to actively treat the primary disease, which can reduce blood pressure. 4. Adverse lifestyle habits: long-term high salt and high fat diet, smoking, alcoholism, long-term late night, obesity, emotional fluctuations, and other bad habits lead to blood pressure has not been satisfactory control. In addition, sleep apnea syndrome, adrenal adenoma and other diseases caused by increased blood pressure, the primary disease is not treated, only with antihypertensive drugs are not effective. High blood pressure is extremely harmful to the human body, so it is necessary to consult a doctor promptly after finding elevated blood pressure, and actively carry out treatment.