Black tea will not cause a significant effect on high blood pressure, patients with high blood pressure try not to drink strong tea, take antihypertensive drugs to avoid serving with tea, under the guidance of a physician to formalize the treatment. Black tea is a kind of tea, and most of the composition of tea is similar, mainly containing caffeine, vitamins, calcium, magnesium and other trace elements, but the tea does not have the value of medicinal use, will not interfere with blood pressure levels, and can not be used in the treatment of high blood pressure. Patients with high blood pressure should try not to drink strong tea, which is more excitatory and may affect the patient’s normal sleep and indirectly lead to higher blood pressure levels. When patients with high blood pressure take oral antihypertensive medication, try not to take it with tea for safety reasons, and there is a lack of information on whether black tea and medication taken together will have an effect.