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 Level 5
 
 A - Alimentary tract and metabolismA03 - Drugs for functional gastrointestinal disordersA03A - Drugs for functional bowel disordersA03AB - Synthetic anticholinergics, quaternary ammonium compoundsA03AB53 - Oxyphenonium, combinations
 
 Oxyphenonium, combinations
 
 
 
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