• 5-ASA
  • Both Metabolised by bacteria to sulfapyridine and 5-ASA
  • Decreases synthesis of prostaglandin and leukotriene, modulating the inflammatory response derived from the cyclooxygenase and lipooxygenase pathways.
  • These preparations are more useful in UC than Crohns – can be given orally or rectally.
  • First line in mild/moderate UC.