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Original ArticleOpen Access
Outpatient Drug Oversupply at a Teaching Hospital in Thailand
Kaojarern S 
,
Ongphiphadhanakul B ,
Pattanaprateep O
,
Ongphiphadhanakul B ,
Pattanaprateep O Background: A part of rising drug expenditure in Thailand was caused from drug oversupply, which was a result from policyof civil servants to get direct reimbursement from Ministry of Finance.
Objective: Describe the problem of oral drug oversupply at outpatient service in a teaching hospital and determine the costthat affects hospital between October 1, 2008 and September 30, 2009.
Material and Method: Data of oral drug prescribing for outpatients were retrieved from the hospital database in the formatof Microsoft Visual Fox Pro 9.0 and analyzed by Microsoft Access 2007. Two assessment methods are applied to estimatedrug oversupply more than 30 days, by month and by year. In addition, September 2009 was selected to study for a patternof monthly drug oversupply.
Results: Total oversupply expenditure for fiscal year 2009 was 56.9 million Baht when summed from monthly basis and 62.0million when performed as a whole year. Oversupply expenditure was 2.12 to 2.73% per month in term of money and 2.91 to3.46% in term of quantity. In September 2009, cardiovascular & hematopoietic system had the most oversupply. By brand ofdrug, the most frequently oversupply were Calcium carbonate (7.60%), Simvastatin (3.69%) and Omeprazole (3.20%). Interm of money, the top three highest costs were for Atorvastatin (7.27%), Clopidogrel (6.83%) and Rosuvastatin (4.24%). Byhealth schemes, patients under CSMBS trend to be the most of prescribed drug oversupply at 8.31% (3.21 million Baht inSeptember 2009) with average number of oversupply per patient at 1.83 items and average day left per drug item at 61.83days.
Conclusion: The most oversupply expenditures were for chronic diseases. These data will focus the problem for hospitaladministrators to plan for suitable strategy to control drug oversupply in their hospital.
Keywords: Drug expenditure, Outpatient, Oral drug, Oversupply, Hospital database
Objective: Describe the problem of oral drug oversupply at outpatient service in a teaching hospital and determine the costthat affects hospital between October 1, 2008 and September 30, 2009.
Material and Method: Data of oral drug prescribing for outpatients were retrieved from the hospital database in the formatof Microsoft Visual Fox Pro 9.0 and analyzed by Microsoft Access 2007. Two assessment methods are applied to estimatedrug oversupply more than 30 days, by month and by year. In addition, September 2009 was selected to study for a patternof monthly drug oversupply.
Results: Total oversupply expenditure for fiscal year 2009 was 56.9 million Baht when summed from monthly basis and 62.0million when performed as a whole year. Oversupply expenditure was 2.12 to 2.73% per month in term of money and 2.91 to3.46% in term of quantity. In September 2009, cardiovascular & hematopoietic system had the most oversupply. By brand ofdrug, the most frequently oversupply were Calcium carbonate (7.60%), Simvastatin (3.69%) and Omeprazole (3.20%). Interm of money, the top three highest costs were for Atorvastatin (7.27%), Clopidogrel (6.83%) and Rosuvastatin (4.24%). Byhealth schemes, patients under CSMBS trend to be the most of prescribed drug oversupply at 8.31% (3.21 million Baht inSeptember 2009) with average number of oversupply per patient at 1.83 items and average day left per drug item at 61.83days.
Conclusion: The most oversupply expenditures were for chronic diseases. These data will focus the problem for hospitaladministrators to plan for suitable strategy to control drug oversupply in their hospital.
Keywords: Drug expenditure, Outpatient, Oral drug, Oversupply, Hospital database
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