Abstract:〔Abstract〕 Objective To analyze the effect of strong Dingxuan tablets combined with betahistine on cerebral hemodynamics, adverse reactions and clinical efficacy in patients with vertigo. Methods A total of 88 patients who received treatment for vertigo in Fujian Provincial Hospital from April 2021 to April 2022 were selected and divided into a control group and an observation group according to the random number table method, with 44 cases in each group. The patients in the control group were treated with betahistine alone, and the patients in the observation group were treated with strong Dingxuan tablets combined with betahistine. The hemodynamic levels of posterior cerebral circulation in the two groups were recorded, and the occurrence of adverse reactions was counted. Results After treatment, the basilar artery (BA), left vertebral artery (LVA) and right vertebral artery (RVA) of the observation group were higher than those of the control group, and the differences were statistically significant (P < 0.05). There was no statistically significant difference in the incidence of adverse reactions between the two groups (P > 0.05). The total effective rate of the observation group was 97.73 %, which was higher than 77.27 % of the control group, and the difference was statistically significant (P < 0.05). Conclusion The application of betahistine in the treatment of vertigo combined with strong Dingxuan tablets can better change the hemodynamic level of patients and improve the efficacy on the premise of ensuring the safety of treatment.