Yes, its antihypertensive effect is aimed at people with high blood pressure, but it has no effect on people with low blood pressure. Because people with low blood pressure generally have slow blood circulation, resulting in insufficient blood supply to the kidneys. Kidney can't effectively eliminate waste, and toxins will accumulate in the body after a long time. The diuretic effect of Cao Maoxu tea is helpful to purify and eliminate the toxins in the kidney after drinking.