Taking antihypertensive drugs want to sleep may be related to the adverse reaction of the drug, some patients may be caused by low blood pressure. There are 5 major categories of antihypertensive drugs, patients with hypertension can choose any drug for antihypertensive treatment, will be drugs in antihypertensive treatment at the same time, there is the possibility of adverse reactions, for example, some patients may want to sleep after taking the drug symptoms. Drugs that can lead to sleep adverse reactions include cotrimoxazole and captopril. Hypertensive patients who want to sleep after taking medication, be alert to the possibility of low blood pressure, low blood pressure may lead to insufficient blood supply to the brain, some patients may want to sleep performance. After taking antihypertensive drugs, sleepiness, should pay attention to strengthen the monitoring of blood pressure level, to avoid the occurrence of insufficient blood supply to the brain or blood pressure is too low. Adverse drug reactions do not require special treatment, if the symptoms are obvious to promptly adjust the drug under the guidance of the doctor.