Tocolytic Agents

Drugs that prevent preterm labor and immature birth by suppressing uterine contractions (TOCOLYSIS). Agents used to delay premature uterine activity include magnesium sulfate, beta-mimetics, oxytocin antagonists, calcium channel inhibitors, and adrenergic beta-receptor agonists. The use of intravenous alcohol as a tocolytic is now obsolete.
DrugDrug NameDrug Description
DB00328IndomethacinA nonsteroidal anti-inflammatory (NSAID) used for symptomatic management of chronic musculoskeletal pain conditions and to induce closure of a hemodynamically significant patent ductus arteriosus in premature infants.
DB00653Magnesium sulfateA drug used to treat convulsions during pregnancy, nephritis in children, magnesium deficiency, and tetany.
DB00816OrciprenalineA beta-2 adrenergic agonist used to treat bronchospasm, asthma, and COPD.
DB00867RitodrineAn adrenergic beta agonist used to treat premature labor.
DB00871TerbutalineA beta-2 adrenergic agonist used as a bronchodilator and to prevent premature labor.
DB01001SalbutamolA beta-2 adrenergic receptor agonist used to treat asthma, bronchitis, COPD, as well as prevent exercise induced bronchospasms.
DB01115NifedipineA dihydropyridine calcium channel blocker indicated for the management of several subtypes of angina pectoris, and hypertension.
DB01288FenoterolA beta-2 adrenergic agonist and bronchodilator used for the symptomatic treatment of asthma.
DB06152NylidrinA vasodilator used to treat patients with peripheral vascular disorders, and elderly patients with symptoms associated with organic mental disorders.
DB08941IsoxsuprineA beta-adrenergic agonist used in the symptomatic treatment of cerebrovascular insufficiency, peripheral vascular disease of arteriosclerosis obliterans, thromboangiitis obliterans (Buerger's disease) and Raynaud's disease.
DB08957HexoprenalineHexoprenaline is a stimulant of beta 2 adrenergic receptors. It is used as a bronchodilator, antiasthmatic, and tocolytic agent.
DB09059AtosibanAn inhibitor of oxytocin and vasopressin used to delay imminent preterm birth in pregnant adult women displaying specific clinical observations.
DrugDrug NameTargetType
DB00328IndomethacinProstaglandin G/H synthase 1target
DB00328IndomethacinProstaglandin G/H synthase 2target
DB00328IndomethacinCytochrome P450 2C19enzyme
DB00328IndomethacinUDP-glucuronosyltransferase 1-9enzyme
DB00328IndomethacinPhospholipase A2, membrane associatedtarget
DB00328IndomethacinProstaglandin reductase 2target
DB00328IndomethacinLactoylglutathione lyasetarget
DB00328IndomethacinProstaglandin D2 receptor 2target
DB00328IndomethacinPeroxisome proliferator-activated receptor gammatarget
DB00328IndomethacinSerum albumincarrier
DB00328IndomethacinCanalicular multispecific organic anion transporter 2transporter
DB00328IndomethacinMultidrug resistance-associated protein 4transporter
DB00328IndomethacinMultidrug resistance-associated protein 6transporter
DB00328IndomethacinP-glycoprotein 1transporter
DB00328IndomethacinMultidrug resistance-associated protein 1transporter
DB00328IndomethacinSolute carrier organic anion transporter family member 1A2transporter
DB00328IndomethacinSolute carrier family 22 member 6transporter
DB00328IndomethacinSolute carrier family 22 member 8transporter
DB00328IndomethacinCanalicular multispecific organic anion transporter 1transporter
DB00328IndomethacinATP-binding cassette sub-family C member 11transporter
DB00328IndomethacinSolute carrier family 22 member 11transporter
DB00328IndomethacinSodium/bile acid cotransportertransporter
DB00328IndomethacinSolute carrier family 22 member 7transporter
DB00328IndomethacinCytochrome P450 2C9enzyme
DB00328IndomethacinUDP-glucuronosyltransferase 1-1enzyme
DB00328IndomethacinLiver carboxylesterase 1enzyme
DB00328IndomethacinUDP-glucuronosyltransferase 2B7enzyme
DB00328IndomethacinPeroxisome proliferator-activated receptor alphatarget
DB00328IndomethacinAldo-keto reductase family 1 member C3target
DB00328IndomethacinSolute carrier organic anion transporter family member 1B1transporter
DB00328IndomethacinBile salt export pumptransporter
DB00653Magnesium sulfateVoltage-dependent calcium channel gamma-1 subunittarget
DB00653Magnesium sulfateVoltage-dependent calcium channel subunit alpha-2/delta-1target
DB00653Magnesium sulfateVoltage-dependent L-type calcium channel subunit alpha-1Ctarget
DB00653Magnesium sulfateVoltage-dependent L-type calcium channel subunit beta-1target
DB00653Magnesium sulfateVoltage-dependent L-type calcium channel subunit beta-2target
DB00653Magnesium sulfateVoltage-dependent L-type calcium channel subunit alpha-1Starget
DB00816OrciprenalineBeta-2 adrenergic receptortarget
DB00867RitodrineBeta-2 adrenergic receptortarget
DB00867Ritodrine6-phosphogluconate dehydrogenase, decarboxylatingenzyme
DB00871TerbutalineBeta-2 adrenergic receptortarget
DB00871TerbutalineCholinesteraseenzyme
DB00871TerbutalineBeta-3 adrenergic receptortarget
DB00871TerbutalineBeta-1 adrenergic receptortarget
DB01001SalbutamolBeta-2 adrenergic receptortarget
DB01001SalbutamolBeta-1 adrenergic receptortarget
DB01001SalbutamolCytochrome P450 3A4enzyme
DB01001SalbutamolBeta-3 adrenergic receptortarget
DB01115NifedipineVoltage-dependent calcium channel subunit alpha-2/delta-1target
DB01115NifedipineCytochrome P450 3A4enzyme
DB01115NifedipineCytochrome P450 2E1enzyme
DB01115NifedipineCytochrome P450 2D6enzyme
DB01115NifedipineCalmodulintarget
DB01115NifedipineVoltage-dependent L-type calcium channel subunit alpha-1Dtarget
DB01115NifedipineVoltage-dependent L-type calcium channel subunit alpha-1Starget
DB01115NifedipineVoltage-dependent L-type calcium channel subunit alpha-1Ctarget
DB01115NifedipineVoltage-dependent L-type calcium channel subunit beta-2target
DB01115NifedipinePotassium voltage-gated channel subfamily A member 1target
DB01115NifedipineVoltage-dependent T-type calcium channel subunit alpha-1Htarget
DB01115NifedipineCytochrome P450 1A2enzyme
DB01115NifedipineCytochrome P450 2A6enzyme
DB01115NifedipineCytochrome P450 2C8enzyme
DB01115NifedipineCanalicular multispecific organic anion transporter 2transporter
DB01115NifedipineP-glycoprotein 1transporter
DB01115NifedipineCanalicular multispecific organic anion transporter 1transporter
DB01115NifedipineCytochrome P450 1A1enzyme
DB01115NifedipineCytochrome P450 2B6enzyme
DB01115NifedipineNuclear receptor subfamily 1 group I member 2target
DB01115NifedipineSolute carrier organic anion transporter family member 1B1transporter
DB01115NifedipineBile salt export pumptransporter
DB01288FenoterolBeta-2 adrenergic receptortarget
DB01288FenoterolBeta-1 adrenergic receptortarget
DB01288FenoterolBeta-3 adrenergic receptortarget
DB06152NylidrinCatechol O-methyltransferaseenzyme
DB06152NylidrinVoltage-dependent T-type calcium channel subunit alpha-1Itarget
DB06152NylidrinInterferon alpha/beta receptor 2target
DB06152NylidrinCytochrome P450 3A4enzyme
DB09059AtosibanOxytocin receptortarget
DB09059AtosibanVasopressin V1a receptortarget
DB09059AtosibanVasopressin V1b receptortarget
DB09059AtosibanVasopressin V2 receptortarget