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|  | The Anatomical Therapeutic Chemical (ATC) classification system |  | 
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 Level 5
 
 D - DermatologicalsD06 - Antibiotics and chemotherapeutics for dermatological useD06B - Chemotherapeutics for topical useD06BA - SulfonamidesD06BA05 - Sulfanilamide
 
 Sulfanilamide
 
 
 
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