To understand the characteristics and combination drug to elderly people by using Maixuekang Capsules in the real world.Methods:Based on HIS database in 21 big 3 A hospital,a total of 4 078 elderly patients using Maixuekang Capsule was conducted for description analysis.Frequency statistics method was used to analyze its basic drug use situation,and to find out the high frequency of drug for evaluation.Apriori algorithm of association rules was adopted to establish the model,and Clementine12.0 was used for correlation analysis,which focused on characteristics of elderly patients and Maixuekang Capsule combination drug use situation.Results:The age of patients ranged from 65 to 80,with a total of 3,093 patients,accounting for 75.85% of the analysis population.In the real world,more middle-aged and elderly patients used Maixuekang Capsules with common diseases.The maximum length of stay was from 15 to 28 days.Hypertension was the most common diagnosis in Western medicine.In combination with Western medicine,vasoactive drugs such as Maixukang Capsule and aspirin were the most common.The combination of traditional Chinese medicine such as Maixuekang Capsule+drugs for activating blood circulation to dissipate blood stasis was the most common.Conclusion:Elderly patients often use Maixuekang Capsules in combination with chemicals with similar pharmacological effects when treating cardiovascular and cerebrovascular diseases.In the real world,Maixuekang Capsule is not only used for patients with excess symptoms such as stasis,and damp-heat,but also for some deficiency syndromes such as deficiency of both qi and yin and liver and kidney deficiency.