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|  | The Anatomical Therapeutic Chemical (ATC) classification system |  | 
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 Level 4
 
 C - Cardiovascular systemC03 - DiureticsC03E - Diuretics and potassium-sparing agents in combinationC03EB - High-ceiling diuretics and potassium-sparing agents
 
 C03EB01 - Furosemide and potassium-sparing agentsC03EB02 - Bumetanide and potassium-sparing agents
 
 
 
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