Cytochrome P-450 CYP2C19 Substrates with a Narrow Therapeutic Index

DrugDrug NameDrug Description
DB01418AcenocoumarolAn anticoagulant drug used in the prevention of thromboembolic diseases in infarction and transient ischemic attacks, as well as management of deep vein thrombosis and myocardial infarction.
DB01118AmiodaroneA class III antiarrhythmic indicated for the treatment of recurrent hemodynamically unstable ventricular tachycardia and recurrent ventricular fibrillation.
DB00321AmitriptylineA tricyclic antidepressant indicated in the treatment of depressive illness, either endogenous or psychotic, and to relieve depression associated anxiety.
DB01242ClomipramineA tricyclic antidepressant used in the treatment of obsessive-compulsive disorder and disorders with an obsessive-compulsive component, such as depression, schizophrenia, and Tourette’s disorder.
DB01320FosphenytoinAn antiepileptic agent used for the management of generalized convulsive status epilepticus and prevention and treatment of seizures occurring during neurosurgery.
DB00458ImipramineA tricyclic antidepressant indicated for the treatment of depression and to reduce childhood enuresis.
DB01174PhenobarbitalA long-lasting barbiturate and anticonvulsant used in the treatment of all types of seizures, except for absent seizures.
DB00252PhenytoinAn anticonvulsant drug used in the prophylaxis and control of various types of seizures.
DB00599ThiopentalA barbiturate used to induce general anesthesia, treat convulsions, and reduce intracranial pressure.
DB00682WarfarinA vitamin K antagonist used to treat venous thromboembolism, pulmonary embolism, thromboembolism with atrial fibrillation, thromboembolism with cardiac valve replacement, and thromboembolic events post myocardial infarction.
DB01142DoxepinA psychotropic agent used for the treatment of depression, anxiety, manic-depressive disorder, and insomnia.
DrugDrug NameTargetType
DB01418AcenocoumarolVitamin K epoxide reductase complex subunit 1target
DB01418AcenocoumarolCytochrome P450 2C9enzyme
DB01418AcenocoumarolCytochrome P450 1A2enzyme
DB01418AcenocoumarolSerum albumincarrier
DB01418AcenocoumarolAlpha-1-acid glycoprotein 1carrier
DB01418AcenocoumarolCytochrome P450 2C19enzyme
DB01418AcenocoumarolCytochrome P450 3A4enzyme
DB01418AcenocoumarolP-glycoprotein 1transporter
DB01118AmiodaroneBeta-1 adrenergic receptortarget
DB01118AmiodaronePotassium voltage-gated channel subfamily H member 2target
DB01118AmiodaroneCytochrome P450 2C8enzyme
DB01118AmiodaroneCytochrome P450 2C9enzyme
DB01118AmiodaroneCytochrome P450 2D6enzyme
DB01118AmiodaroneVoltage-dependent T-type calcium channel subunit alpha-1Htarget
DB01118AmiodaroneVoltage-dependent calcium channel subunit alpha-2/delta-2target
DB01118AmiodaroneCytochrome P450 3A4enzyme
DB01118AmiodaroneCytochrome P450 1A2enzyme
DB01118AmiodaroneCytochrome P450 1A1enzyme
DB01118AmiodaroneP-glycoprotein 1transporter
DB01118AmiodaroneCytochrome P450 2C19enzyme
DB01118AmiodaroneCytochrome P450 2A6enzyme
DB01118AmiodaroneThyroid hormone receptor alphatarget
DB01118AmiodaroneThyroid hormone receptor betatarget
DB01118AmiodaronePeroxisome proliferator-activated receptor gammatarget
DB01118AmiodaroneBile salt export pumptransporter
DB01118AmiodaroneSolute carrier family 22 member 2transporter
DB01118AmiodaroneCytochrome P450 2J2enzyme
DB00321AmitriptylineSodium-dependent serotonin transportertarget
DB00321AmitriptylineSodium-dependent noradrenaline transportertarget
DB00321AmitriptylinePotassium voltage-gated channel subfamily KQT member 2target
DB00321AmitriptylineAlpha-2A adrenergic receptortarget
DB00321AmitriptylineCytochrome P450 1A2enzyme
DB00321AmitriptylineCytochrome P450 2C19enzyme
DB00321AmitriptylineCytochrome P450 2D6enzyme
DB00321AmitriptylineSerum albumincarrier
DB00321AmitriptylineAlpha-1-acid glycoprotein 1carrier
DB00321AmitriptylineHistamine H1 receptortarget
DB00321Amitriptyline5-hydroxytryptamine receptor 2Atarget
DB00321Amitriptyline5-hydroxytryptamine receptor 1Atarget
DB00321AmitriptylineAlpha-1A adrenergic receptortarget
DB00321AmitriptylineCytochrome P450 3A4enzyme
DB00321AmitriptylineCytochrome P450 3A5enzyme
DB00321AmitriptylinePotassium voltage-gated channel subfamily A member 1target
DB00321AmitriptylineAlpha-1D adrenergic receptortarget
DB00321AmitriptylineDelta-type opioid receptortarget
DB00321AmitriptylineKappa-type opioid receptortarget
DB00321AmitriptylineHigh affinity nerve growth factor receptortarget
DB00321AmitriptylineBDNF/NT-3 growth factors receptortarget
DB00321AmitriptylineCytochrome P450 2C9enzyme
DB00321AmitriptylineCytochrome P450 2B6enzyme
DB00321AmitriptylineCytochrome P450 2C8enzyme
DB00321AmitriptylineHistamine H2 receptortarget
DB00321AmitriptylineHistamine H4 receptortarget
DB00321AmitriptylineSigma non-opioid intracellular receptor 1target
DB00321Amitriptyline5-hydroxytryptamine receptor 2Ctarget
DB00321AmitriptylineAlpha-1B adrenergic receptortarget
DB00321Amitriptyline5-hydroxytryptamine receptor 7target
DB00321Amitriptyline5-hydroxytryptamine receptor 1Dtarget
DB00321AmitriptylineMu-type opioid receptortarget
DB00321Amitriptyline5-hydroxytryptamine receptor 1Btarget
DB00321Amitriptyline5-hydroxytryptamine receptor 6target
DB00321AmitriptylinePotassium voltage-gated channel subfamily KQT member 3target
DB00321AmitriptylineUDP-glucuronosyltransferase 2B10enzyme
DB00321Amitriptyline5-hydroxytryptamine receptor 1Ctarget
DB00321AmitriptylineMuscarinic acetylcholine receptortarget
DB00321AmitriptylineHERG human cardiac K+ channeltarget
DB00321AmitriptylineP-glycoprotein 1transporter
DB00321AmitriptylineUDP-glucuronosyltransferase 1-4enzyme
DB01242ClomipramineSodium-dependent serotonin transportertarget
DB01242ClomipramineSodium-dependent noradrenaline transportertarget
DB01242ClomipramineGlutathione S-transferase Ptarget
DB01242Clomipramine5-hydroxytryptamine receptor 2Atarget
DB01242ClomipramineCytochrome P450 1A2enzyme
DB01242ClomipramineCytochrome P450 2D6enzyme
DB01242ClomipramineCytochrome P450 2C19enzyme
DB01242ClomipramineP-glycoprotein 1transporter
DB01242ClomipramineCytochrome P450 3A4enzyme
DB01242Clomipramine5-hydroxytryptamine receptor 2Btarget
DB01242Clomipramine5-hydroxytryptamine receptor 2Ctarget
DB01242ClomipramineSerum albumincarrier
DB01320FosphenytoinSodium channel protein type 5 subunit alphatarget
DB01320FosphenytoinCytochrome P450 2C19enzyme
DB01320FosphenytoinCytochrome P450 2B6enzyme
DB01320FosphenytoinCytochrome P450 2C9enzyme
DB01320FosphenytoinCytochrome P450 3A4enzyme
DB01320FosphenytoinSerum albumincarrier
DB01320FosphenytoinCytochrome P450 1A2enzyme
DB01320FosphenytoinUDP-glucuronosyltransferase 1-6enzyme
DB01320FosphenytoinUDP-glucuronosyltransferase 1-9enzyme
DB01320FosphenytoinThyroxine-binding globulincarrier
DB00458ImipramineSodium-dependent noradrenaline transportertarget
DB00458ImipramineSodium-dependent serotonin transportertarget
DB00458ImipramineCytochrome P450 1A2enzyme
DB00458ImipramineCytochrome P450 2C19enzyme
DB00458ImipramineCytochrome P450 2D6enzyme
DB00458ImipramineHistamine H1 receptortarget
DB00458ImipramineAlpha-1A adrenergic receptortarget
DB00458Imipramine5-hydroxytryptamine receptor 2Atarget
DB00458ImipramineMuscarinic acetylcholine receptor M1target
DB00458ImipramineMuscarinic acetylcholine receptor M2target
DB00458ImipramineMuscarinic acetylcholine receptor M3target
DB00458ImipramineMuscarinic acetylcholine receptor M4target
DB00458ImipramineMuscarinic acetylcholine receptor M5target
DB00458ImipraminePotassium voltage-gated channel subfamily D member 2target
DB00458ImipraminePotassium voltage-gated channel subfamily D member 3target
DB00458ImipramineAlpha-1D adrenergic receptortarget
DB00458ImipramineAlpha-1-acid glycoprotein 1carrier
DB00458ImipramineSolute carrier family 22 member 2transporter
DB00458ImipramineSolute carrier family 22 member 3transporter
DB00458ImipramineP-glycoprotein 1transporter
DB00458ImipramineSolute carrier family 22 member 4transporter
DB00458ImipramineCytochrome P450 3A4enzyme
DB00458ImipramineCytochrome P450 2B6enzyme
DB00458ImipramineCytochrome P450 2C18enzyme
DB00458ImipramineCytochrome P450 2E1enzyme
DB00458ImipramineCytochrome P450 3A7enzyme
DB00458Imipramine5-hydroxytryptamine receptor 2Ctarget
DB00458ImipramineAlpha-1B adrenergic receptortarget
DB00458Imipramine5-hydroxytryptamine receptor 7target
DB00458ImipramineD(1) dopamine receptortarget
DB00458ImipramineDopamine D2 receptortarget
DB00458ImipraminePotassium voltage-gated channel subfamily H member 2target
DB00458ImipramineSodium-dependent dopamine transportertarget
DB00458Imipramine5-hydroxytryptamine receptor 1Atarget
DB00458Imipramine5-hydroxytryptamine receptor 6target
DB00458ImipraminePotassium voltage-gated channel subfamily H member 1target
DB00458ImipramineSerum albumincarrier
DB00458ImipramineAlpha-1-acid glycoprotein 2target
DB01174PhenobarbitalGamma-aminobutyric acid receptor subunit alpha-1target
DB01174PhenobarbitalCytochrome P450 2C19enzyme
DB01174PhenobarbitalCytochrome P450 2C9enzyme
DB01174PhenobarbitalCytochrome P450 2B6enzyme
DB01174PhenobarbitalCytochrome P450 2C8enzyme
DB01174PhenobarbitalCytochrome P450 1A2enzyme
DB01174PhenobarbitalCytochrome P450 3A4enzyme
DB01174PhenobarbitalCanalicular multispecific organic anion transporter 2transporter
DB01174PhenobarbitalBile salt export pumptransporter
DB01174PhenobarbitalP-glycoprotein 1transporter
DB01174PhenobarbitalMultidrug resistance-associated protein 1transporter
DB01174PhenobarbitalSolute carrier organic anion transporter family member 2A1transporter
DB01174PhenobarbitalCanalicular multispecific organic anion transporter 1transporter
DB01174PhenobarbitalNeuronal acetylcholine receptor subunit alpha-4target
DB01174PhenobarbitalNeuronal acetylcholine receptor subunit alpha-7target
DB01174PhenobarbitalGlutamate receptor 2target
DB01174PhenobarbitalGlutamate receptor ionotropic, kainate 2target
DB01174PhenobarbitalCytochrome P450 2A6enzyme
DB01174PhenobarbitalCytochrome P450 2E1enzyme
DB01174PhenobarbitalCytochrome P450 3A5enzyme
DB01174PhenobarbitalCytochrome P450 1A1enzyme
DB01174PhenobarbitalCytochrome P450 2C18enzyme
DB01174PhenobarbitalCytochrome P450 3A7enzyme
DB01174PhenobarbitalCytochrome P450 4B1enzyme
DB01174PhenobarbitalNMDA receptortarget
DB01174PhenobarbitalNuclear receptor subfamily 1 group I member 2target
DB01174PhenobarbitalUDP-glucuronosyltransferase 1-1enzyme
DB01174PhenobarbitalUDP-glucuronosyltransferase 2B7enzyme
DB00252PhenytoinSodium channel protein type 5 subunit alphatarget
DB00252PhenytoinSodium channel protein type 1 subunit alphatarget
DB00252PhenytoinCytochrome P450 2C8enzyme
DB00252PhenytoinCytochrome P450 2C19enzyme
DB00252PhenytoinCytochrome P450 2C9enzyme
DB00252PhenytoinCytochrome P450 2B6enzyme
DB00252PhenytoinCytochrome P450 3A5enzyme
DB00252PhenytoinSerum albumincarrier
DB00252PhenytoinCytochrome P450 3A4enzyme
DB00252PhenytoinSolute carrier organic anion transporter family member 1C1transporter
DB00252PhenytoinP-glycoprotein 1transporter
DB00252PhenytoinCanalicular multispecific organic anion transporter 1transporter
DB00252PhenytoinCytochrome P450 11B1, mitochondrialenzyme
DB00252PhenytoinCytochrome P450 3A7enzyme
DB00252PhenytoinNuclear receptor subfamily 1 group I member 2target
DB00252PhenytoinSodium channel subunit beta-1target
DB00252PhenytoinSodium channel protein type 3 subunit alphatarget
DB00252PhenytoinUDP-glucuronosyltransferase 1-1enzyme
DB00252PhenytoinUDP-glucuronosyltransferase 1-6enzyme
DB00252PhenytoinUDP-glucuronosyltransferase 1-9enzyme
DB00252PhenytoinThyroxine-binding globulincarrier
DB00599ThiopentalGamma-aminobutyric acid receptor subunit alpha-1target
DB00599ThiopentalFatty-acid amide hydrolase 1target
DB00599ThiopentalGamma-aminobutyric acid receptor subunit alpha-2target
DB00599ThiopentalGamma-aminobutyric acid receptor subunit alpha-3target
DB00599ThiopentalGamma-aminobutyric acid receptor subunit alpha-4target
DB00599ThiopentalGamma-aminobutyric acid receptor subunit alpha-5target
DB00599ThiopentalGamma-aminobutyric acid receptor subunit alpha-6target
DB00599ThiopentalNeuronal acetylcholine receptor subunit alpha-4target
DB00599ThiopentalNeuronal acetylcholine receptor subunit alpha-7target
DB00599ThiopentalGlutamate receptor 2target
DB00599ThiopentalGlutamate receptor ionotropic, kainate 2target
DB00599ThiopentalCytochrome P450 3A Subfamilyenzyme
DB00599ThiopentalMuscarinic acetylcholine receptor M3target
DB00599ThiopentalCytochrome P450 2C19enzyme
DB00682WarfarinVitamin K epoxide reductase complex subunit 1target
DB00682WarfarinCytochrome P450 2C8enzyme
DB00682WarfarinCytochrome P450 1A2enzyme
DB00682WarfarinCytochrome P450 2C9enzyme
DB00682WarfarinAlpha-1-acid glycoprotein 1carrier
DB00682WarfarinSerum albumincarrier
DB00682WarfarinCytochrome P450 2C19enzyme
DB00682WarfarinCytochrome P450 3A4enzyme
DB00682WarfarinCytochrome P450 2C18enzyme
DB00682WarfarinNuclear receptor subfamily 1 group I member 2target
DB01142DoxepinSodium-dependent serotonin transportertarget
DB01142DoxepinSodium-dependent noradrenaline transportertarget
DB01142DoxepinHistamine H1 receptortarget
DB01142DoxepinHistamine H2 receptortarget
DB01142DoxepinCytochrome P450 2D6enzyme
DB01142DoxepinMuscarinic acetylcholine receptor M1target
DB01142DoxepinMuscarinic acetylcholine receptor M2target
DB01142DoxepinMuscarinic acetylcholine receptor M3target
DB01142DoxepinMuscarinic acetylcholine receptor M4target
DB01142DoxepinMuscarinic acetylcholine receptor M5target
DB01142DoxepinAlpha-1A adrenergic receptortarget
DB01142Doxepin5-hydroxytryptamine receptor 1Atarget
DB01142Doxepin5-hydroxytryptamine receptor 2Atarget
DB01142DoxepinCytochrome P450 2C19enzyme
DB01142DoxepinCytochrome P450 2C9enzyme
DB01142DoxepinCytochrome P450 1A2enzyme
DB01142DoxepinP-glycoprotein 1transporter
DB01142Doxepin5-hydroxytryptamine receptor 2Btarget
DB01142Doxepin5-hydroxytryptamine receptor 2Ctarget
DB01142DoxepinAlpha-1B adrenergic receptortarget
DB01142DoxepinAlpha-1D adrenergic receptortarget
DB01142DoxepinCytochrome P450 3A4enzyme
DB01142Doxepin5-hydroxytryptamine receptor 6target
DB01142DoxepinHistamine H4 receptortarget
DB01142DoxepinPotassium voltage-gated channel subfamily H member 2target
DB01142DoxepinSerum albumincarrier
DB01142DoxepinAlpha-1-acid glycoprotein 1carrier