The analyses of the trends and affected factors about drug expenditure in American health institutions

Key words: 
• American health institutions /
• drug expenditure /
• affected factors

Abstract: Objective To analyze the trends and affected factors of the drug expenditure in American health institutions and describe some rules. Methods The literature about drug expenditure in American health system pharmacy was collected and the relationship between the drug expenditure and the factors was described. Results and Conclusion The drug expenditure in American health institutions has been increasing year after year and is estimated to be increasing continually in the next few years. The primary factors which affect the drug expenditure are the increasing drug use, new drug's coming into maket, high drug price index and drug policy and regulations etc.