MesalamineCapsulesAnti-Inflammatory Agents, Non-SteroidalColitis, UlcerativeProctitisSuppositoriesSulfasalazineColitis, CollagenousBacterial CapsulesGastrointestinal AgentsCapsule EndoscopyAminosalicylic AcidsBinomial DistributionJoint CapsuleDelayed-Action PreparationsLens Capsule, CrystallinePhenylhydrazines6-MercaptopurineBerylliumCapsule EndoscopesBerylliosisColonHydrogen SulfideBudesonideAzathioprineInternal CapsuleAnti-Inflammatory AgentsRemission InductionChemistry, PharmaceuticalCrohn DiseaseDouble-Blind MethodTreatment OutcomeAdministration, OralMedication Adherence