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|  | The Anatomical Therapeutic Chemical (ATC) classification system |  | 
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 Level 5
 
 C - Cardiovascular systemC05 - VasoprotectivesC05B - Antivaricose therapyC05BA - Heparins or heparinoids for topical useC05BA04 - Pentosan Polysulfate Sodium
 
 Pentosan Polysulfate Sodium
 
 
 
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