Cerebral blood supply insufficiency has no corresponding name in Chinese medicine, according to the symptoms belong to the category of vertigo. From the efficacy and function of this drug, Zhengtian Pills does not have the effect of treating cerebral insufficiency of blood supply, if there is a need for treatment, it should be standardized under the guidance of a professional physician. In addition, Zhengtian Pills as a drug, can not be taken for a long time, should follow the doctor’s instructions for medication. Zhengtian Pill is composed of Hooker’s Tree, White Peony, Rhizoma Ligustici Chuanxiong, Angelica Sinensis and Radix Rehmanniae Praeparata. It has the efficacy of dispersing wind and activating blood (evacuating wind and promoting blood circulation), nourishing blood and calming the liver, and clearing the channels and relieving pain. Clinically, it is mostly used for many kinds of headaches caused by external wind, blood stasis and obstruction of collaterals, blood deficiency and loss of nourishment, hyperactivity of liver yang (excessive liver yang, causing dizziness, dizziness, headache and other symptoms), neurogenic headache, cervical vertebral headache, premenstrual headache and so on. It should be noted that in individual cases, there is a mild increase in ghrelin transaminase after taking the medicine; occasionally there is dry mouth, bitter mouth, abdominal pain and diarrhea; prohibited for infants, pregnant women, lactating women; prohibited for people with liver and renal insufficiency; advisable to take after meals.