IndomethacinCyclooxygenase InhibitorsProstaglandinsAnti-Inflammatory Agents, Non-SteroidalDinoprostoneProstaglandins EProstaglandin-Endoperoxide SynthasesProstaglandin AntagonistsDuctus Arteriosus, PatentCyclooxygenase 14,5-Dihydro-1-(3-(trifluoromethyl)phenyl)-1H-pyrazol-3-amineStomach UlcerArachidonic AcidsIbuprofenGastric Mucosa6-Ketoprostaglandin F1 alphaMasoprocolMeclofenamic AcidArachidonic AcidProstaglandins FDose-Response Relationship, DrugEpoprostenolCyclooxygenase 2Lipoxygenase InhibitorsBradykinin16,16-Dimethylprostaglandin E2AspirinVasodilationCyclooxygenase 2 InhibitorsBiological FactorsNitrobenzenes5,8,11,14-Eicosatetraynoic AcidNitric OxideNG-Nitroarginine Methyl EsterNitroarginineThromboxane B2Rats, WistarGuinea PigsMuscle RelaxationThromboxane A2AcetylcholineVasoconstrictionDuctus ArteriosusProstaglandins E, SyntheticDinoprostRats, Inbred StrainsMuscle ContractionEndothelium, VascularSRS-ARabbitsHistaminePiroxicamSulfonamidesDrug InteractionsPyrazolesRats, Sprague-DawleyThromboxanesEdemaMuscle, SmoothPhenylbutazoneNitric Oxide SynthaseQuinacrineEnzyme InhibitorsKetoprofenSodium SalicylateVasoconstrictor AgentsVasodilator AgentsButanonesEicosanoidsDiclofenacMesenteric Arteries15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidAnti-Inflammatory AgentsCarrageenanTracheaOssification, HeterotopicMuscle TonusDipyroneLipoxygenaseFlurbiprofenIsoenzymesSuppositoriesThromboxane-A SynthaseStomach DiseasesMefenamic AcidTocolytic AgentsCharybdotoxinMuscle, Smooth, VascularRegional Blood FlowSalicylatesArteriolesp-Aminohippuric AcidProstaglandin Endoperoxides, SyntheticArginineAlprostadilUlcerCimetidineGastric AcidFlufenamic AcidJejunal Diseases