Objective: This study aims to explore the way of monitoring drug prices and to leverage the role of price monitoring in improving the drug price formation system. This study constructs drug price indices to analyze trends in drug price changes and their underlying causes, as well as to provide references for drug price monitoring nationwide. Methods: Using health insurance claims data from Nanning City from January 2022 to September 2023, we construct monthly drug price indices based on the chained Fisher price index. We analyze trends and reasons of price changes across overall, categorized, and essential drug groups. Results: The average price of all drugs in Nanning City exhibits a general downward trend during the sample period, with an average decrease of approximately 12.7%. A categorized analysis revealed variations in price change trends across different categories (western and Chinese patent medicines, and drugs with varying reimbursement levels) and sales channels (pharmacies and hospitals, for-profit and not-for-profit hospitals, and hospitals with differing levels). The price changes of essential drugs (centralized procurement drugs and antipyretic analgesic drugs) were influenced by market supply-demand relationship and policies. Suggestions: We should establish and improve drug price monitoring mechanisms, promoting the institutionalization and normalization of drug price monitoring, implementing the monitoring on prices for categorized drugs and enhancing the monitoring of essential drugs.
Key words
drug price index /
drug price monitoring /
essential drugs
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