LAMOTRIGINE

Details

Stereochemistry	ACHIRAL
Molecular Formula	C9H7Cl2N5
Molecular Weight	256.0916
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

c1cc(c(c(c1)Cl)Cl)-c2c(N)[nH]c(=N)nn2

InChI

InChIKey=PYZRQGJRPPTADH-UHFFFAOYSA-N

InChI=1S/C9H7Cl2N5/c10-5-3-1-2-4(6(5)11)7-8(12)14-9(13)16-15-7/h1-3H,(H4,12,13,14,16)

HIDE SMILES / InChI

Molecular Formula	C9H7Cl2N5
Molecular Weight	256.0916
Charge	0
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Description
Sources: http://www.accessdata.fda.gov/drugsatfda_docs/label/2015/020241s045s051lbl.pdf

Lamotrigine (marketed as Lamictal) is an anticonvulsant drug used in the treatment of epilepsy and bipolar disorder. The precise mechanism(s) by which lamotrigine exerts its anticonvulsant action are unknown. In animal models designed to detect anticonvulsant activity, lamotrigine was effective in preventing seizure spread in the maximum electroshock (MES) and pentylenetetrazol (scMet) tests, and prevented seizures in the visually and electrically evoked after-discharge (EEAD) tests for antiepileptic activity. Lamotrigine also displayed inhibitory properties in the kindling model in rats both during kindling development and in the fully kindled state. The relevance of these models to human epilepsy, however, is not known. One proposed mechanism of action of lamotrigine, the relevance of which remains to be established in humans, involves an effect on sodium channels. In vitro pharmacological studies suggest that lamotrigine inhibits voltage-sensitive sodium channels, thereby stabilizing neuronal membranes and consequently modulating presynaptic transmitter release of excitatory amino acids (e.g., glutamate and aspartate). Effect of Lamotrigine on N-Methyl d-Aspartate-Receptor Mediated Activity Lamotrigine did not inhibit N-methyl d-aspartate (NMDA)-induced depolarizations in rat cortical slices or NMDA-induced cyclic GMP formation in immature rat cerebellum, nor did lamotrigine displace compounds that are either competitive or noncompetitive ligands at this glutamate receptor complex (CNQX, CGS, TCHP). The IC50 for lamotrigine effects on NMDA-induced currents (in the presence of 3 uM of glycine) in cultured hippocampal neurons exceeded 100 uM. The mechanisms by which lamotrigine exerts its therapeutic action in bipolar disorder have not been established. The mechanisms that underpin the passage of lamotrigine at the blood-brain barrier to its site of action in the brain is poorly understood.

CNS Activity

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
Sodium channel alpha subunit 69 Target ID: CHEMBL2331043 Sources: http://www.accessdata.fda.gov/drugsatfda_docs/label/2015/020241s045s051lbl.pdf	Inhibitor 7728

Conditions

Condition	Modality	Targets	Highest Phase	Product
Epilepsy 116 Sources: http://www.accessdata.fda.gov/drugsatfda_docs/label/2015/020241s045s051lbl.pdf	Primary		Approved 8043	LAMICTAL Approved Use INDICATIONS & USAGE Lamotrigine is indicated for: Epilepsy—adjunctive therapy in patients aged 2 years and older: · partial-onset seizures. · primary generalized tonic-clonic seizures. · generalized seizures of Lennox-Gastaut syndrome. (1.1) Epilepsy—monotherapy in patients aged 16 years and older: Conversion to monotherapy in patients with partial-onset seizures who are receiving treatment with carbamazepine, phenytoin, phenobarbital, primidone, or valproate as the single AED. (1.1) Bipolar disorder: Maintenance treatment of bipolar I disorder to delay the time to occurrence of mood episodes in patients treated for acute mood episodes with standard therapy. (1.2) Limitations of Use: Treatment of acute manic or mixed episodes is not recommended. Effectiveness of lamotrigine in the acute treatment of mood episodes has not been established. 1.1 Epilepsy Adjunctive Therapy Lamotrigine is indicated as adjunctive therapy for the following seizure types in patients aged 2 years and older: · partial-onset seizures. · primary generalized tonic-clonic (PGTC) seizures. · generalized seizures of Lennox-Gastaut syndrome. Monotherapy Lamotrigine is indicated for conversion to monotherapy in adults (aged 16 years and older) with partial-onset seizures who are receiving treatment with carbamazepine, phenytoin, phenobarbital, primidone, or valproate as the single antiepileptic drug (AED). Safety and effectiveness of lamotrigine have not been established (1) as initial monotherapy; (2) for conversion to monotherapy from AEDs other than carbamazepine, phenytoin, phenobarbital, primidone, or valproate; or (3) for simultaneous conversion to monotherapy from 2 or more concomitant AEDs. 1.2 Bipolar Disorder Lamotrigine is indicated for the maintenance treatment of bipolar I disorder to delay the time to occurrence of mood episodes (depression, mania, hypomania, mixed episodes) in adults in patients treated for acute mood episodes with standard therapy [see Clinical Studies (14.1) Launch Date 7.8848642E11
Bipolar disorder 33 Sources: http://www.accessdata.fda.gov/drugsatfda_docs/label/2015/020241s045s051lbl.pdf	Primary		Approved 8043	LAMICTAL Approved Use INDICATIONS & USAGE Lamotrigine is indicated for: Epilepsy—adjunctive therapy in patients aged 2 years and older: · partial-onset seizures. · primary generalized tonic-clonic seizures. · generalized seizures of Lennox-Gastaut syndrome. (1.1) Epilepsy—monotherapy in patients aged 16 years and older: Conversion to monotherapy in patients with partial-onset seizures who are receiving treatment with carbamazepine, phenytoin, phenobarbital, primidone, or valproate as the single AED. (1.1) Bipolar disorder: Maintenance treatment of bipolar I disorder to delay the time to occurrence of mood episodes in patients treated for acute mood episodes with standard therapy. (1.2) Limitations of Use: Treatment of acute manic or mixed episodes is not recommended. Effectiveness of lamotrigine in the acute treatment of mood episodes has not been established. 1.1 Epilepsy Adjunctive Therapy Lamotrigine is indicated as adjunctive therapy for the following seizure types in patients aged 2 years and older: · partial-onset seizures. · primary generalized tonic-clonic (PGTC) seizures. · generalized seizures of Lennox-Gastaut syndrome. Monotherapy Lamotrigine is indicated for conversion to monotherapy in adults (aged 16 years and older) with partial-onset seizures who are receiving treatment with carbamazepine, phenytoin, phenobarbital, primidone, or valproate as the single antiepileptic drug (AED). Safety and effectiveness of lamotrigine have not been established (1) as initial monotherapy; (2) for conversion to monotherapy from AEDs other than carbamazepine, phenytoin, phenobarbital, primidone, or valproate; or (3) for simultaneous conversion to monotherapy from 2 or more concomitant AEDs. 1.2 Bipolar Disorder Lamotrigine is indicated for the maintenance treatment of bipolar I disorder to delay the time to occurrence of mood episodes (depression, mania, hypomania, mixed episodes) in adults in patients treated for acute mood episodes with standard therapy [see Clinical Studies (14.1) Launch Date 7.8848642E11

C_max

Value	Dose	Analyte	Population
4900 ng/mL EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/20047572	150 mg 1 times / day steady-state, oral dose: 150 mg route of administration: Oral experiment type: STEADY-STATE co-administered:	LAMOTRIGINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: UNKNOWN
2518 ng/mL Clinical Trial https://clinicaltrials.gov/ct2/show/NCT00835263	200 mg single, oral dose: 200 mg route of administration: oral experiment type: single co-administered:	LAMOTRIGINE plasma	Homo sapiens population: age: sex: food status: Fed
2912.04 ng/mL Clinical Trial https://clinicaltrials.gov/ct2/show/NCT00834561	200 mg single, oral dose: 200 mg route of administration: oral experiment type: single co-administered:	LAMOTRIGINE plasma	Homo sapiens population: age: sex: food status: Fasted

AUC

Value	Dose	Analyte	Population
73723 ng × h/mL EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/20047572	150 mg 1 times / day steady-state, oral dose: 150 mg route of administration: Oral experiment type: STEADY-STATE co-administered:	LAMOTRIGINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: UNKNOWN
113029.409999999 ng*h/mL Clinical Trial https://clinicaltrials.gov/ct2/show/NCT00835263	200 mg single, oral dose: 200 mg route of administration: oral experiment type: single co-administered:	LAMOTRIGINE plasma	Homo sapiens population: age: sex: food status: Fed
120080.26 ng*h/mL Clinical Trial https://clinicaltrials.gov/ct2/show/NCT00834561	200 mg single, oral dose: 200 mg route of administration: oral experiment type: single co-administered:	LAMOTRIGINE plasma	Homo sapiens population: age: sex: food status: Fasted
131594.33 ng*h/mL Clinical Trial https://clinicaltrials.gov/ct2/show/NCT00835263	200 mg single, oral dose: 200 mg route of administration: oral experiment type: single co-administered:	LAMOTRIGINE plasma	Homo sapiens population: age: sex: food status: Fed
139995.13 ng*h/mL Clinical Trial https://clinicaltrials.gov/ct2/show/NCT00834561	200 mg single, oral dose: 200 mg route of administration: oral experiment type: single co-administered:	LAMOTRIGINE plasma	Homo sapiens population: age: sex: food status: Fasted

T_1/2

Value	Dose	Co-administered	Analyte	Population
22.6 h EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/20047572	150 mg 1 times / day steady-state, oral dose: 150 mg route of administration: Oral experiment type: STEADY-STATE co-administered:		LAMOTRIGINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: UNKNOWN

F_unbound

Value	Dose	Co-administered	Analyte	Population
45% DRUG LABEL https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/022251,020764s029,020241s036lbl.pdf			LAMOTRIGINE plasma	Homo sapiens population: UNKNOWN age: UNKNOWN sex: UNKNOWN food status: UNKNOWN

Overview

CYP3A4	CYP2C9	CYP2D6	hERG
substrate 1601 inhibitor 1467	substrate 936 inhibitor 1604	substrate 1118 inhibitor 1702	inhibitor 1475

OverviewOther

Other Inhibitor	Other Substrate	Other Inducer
OCT2 594 CYP2B6 717 CYP1A2 1383 CYP2A6 627 CYP2C19 1325 CYP2E1 790 P-gp 1330 BSEP 376 OATP1B1 733 OATP1B3 657 OATP2B1 109 Nav1.5 93 Nav1.7 36 Cav1.2 45 Kv4.3 15	UGT 173 UGT1A1 393 UGT1A3 397 UGT1A4 330 UGT1A6 289 UGT1A7 221 UGT1A8 266 UGT1A9 357 UGT1A10 273 UGT2B4 233 UGT2B7 362 UGT2B15 191 UGT2B17 203 CYP1A2 972 CYP2A6 485 CYP2B6 616 CYP2C8 634 CYP2C19 910 P-gp 1400 OCT1 302 OATP1A2 57 OATP1B3 319 OATP2B1 101 OCT3 75 OCT2 316 BCRP 515 MRP1 97 MRP2 182 MRP5 39	UGT 27

Drug as perpetrator

Target	Modality	Activity	Clinical evidence
CYP1A2 1532	inhibitor 3045 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwzMzU2IiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDc0MSJ9fQ%3D%3D	no [IC50 >10 uM]
CYP2A6 659	inhibitor 3045 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkw1MjgyIiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDc0MSJ9fQ%3D%3D	no [IC50 >10 uM]
CYP2C19 1392	inhibitor 3045 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwzNjIyIiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDc0MSJ9fQ%3D%3D	no [IC50 >10 uM]
CYP2C9 1648	inhibitor 3045 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwzMzk3IiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDc0MSJ9fQ%3D%3D	no [IC50 >10 uM]
CYP2D6 1738	inhibitor 3045 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2020/020241s058,020764s051,022251s022lbl.pdf#page=52, https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwyODkiLCJ1c2VfY3VzdG9tX3F1ZXJ5Ijp0cnVlLCJzZWFyY2hfdGVybSI6IiIsInRleHRfZmlsdGVyIjoiQ0hFTUJMNzQxIn19 Page: 52.0	no [IC50 >10 uM]
CYP2E1 871	inhibitor 3045 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkw1MjgxIiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDc0MSJ9fQ%3D%3D	no [IC50 >10 uM]
CYP3A4 1772	inhibitor 3045 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwzNDAiLCJ1c2VfY3VzdG9tX3F1ZXJ5Ijp0cnVlLCJzZWFyY2hfdGVybSI6IiIsInRleHRfZmlsdGVyIjoiQ0hFTUJMNzQxIn19	no [IC50 >10 uM]
BSEP 377	inhibitor 3045 Sources: https://pubmed.ncbi.nlm.nih.gov/23956101/	no [IC50 >133 uM]
CYP2B6 884	inhibitor 3045 Sources: https://pubmed.ncbi.nlm.nih.gov/17101742/	no
Kv4.3 15	inhibitor 3045 Sources: https://pubmed.ncbi.nlm.nih.gov/25087753/, https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwxOTY0IiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDc0MSJ9fQ%3D%3D	no
OATP1B1 748	inhibitor 3045 Sources: https://pubs.acs.org/doi/10.1021/jm300212s	weak
OATP1B3 666	inhibitor 3045 Sources: https://pubs.acs.org/doi/10.1021/jm300212s	weak
OATP2B1 112	inhibitor 3045 Sources: https://pubs.acs.org/doi/10.1021/jm300212s	weak
UGT 54	inducer 1440 Sources: https://pubmed.ncbi.nlm.nih.gov/9606477/, https://pubmed.ncbi.nlm.nih.gov/8823232/, https://bioinformatics.charite.de/transformer/index.php?site=fullinfo&cname=084057841	weak	yes (co-administration study) Comment: Coadministration of Lamotrigine decreased Valproate steady-state concentration by 25%. Sources: https://pubmed.ncbi.nlm.nih.gov/9606477/, https://pubmed.ncbi.nlm.nih.gov/8823232/, https://bioinformatics.charite.de/transformer/index.php?site=fullinfo&cname=084057841
OCT2 595	inhibitor 3045 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2020/020241s058,020764s051,022251s022lbl.pdf#page=35 Page: 35-36, 52	yes [IC50 53.8 uM]
Nav1.7 36	inhibitor 3045 Sources: https://pubs.acs.org/doi/10.1021/jm801180p	yes
P-gp 1514	inhibitor 3045 Sources: https://pubmed.ncbi.nlm.nih.gov/12954800/, https://go.drugbank.com/drugs/DB00555	yes

Drug as victim

Target	Modality	Activity	Clinical evidence
UGT1A4 330	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, 39-40, (PMDA_K100) 50	major	yes (co-administration study) Comment: Coadministration of Valproic acid (UGT inducer) decreased Lamotrigine CL/F by about 50%. Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, 39-40, (PMDA_K100) 50
UGT1A3 397	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, 39-40, (PMDA_K100) 50	minor	yes (co-administration study) Comment: Coadministration of Valproic acid (UGT inducer) decreased Lamotrigine CL/F by about 50%. Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, 39-40, (PMDA_K100) 50
CYP1A2 972	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50-51	no [IC50 >100 uM]
CYP2A6 485	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50-51	no [IC50 >100 uM]
CYP2B6 616	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50-51	no [IC50 >100 uM]
CYP2C19 910	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50-51	no [IC50 >100 uM]
CYP2C8 634	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50-51	no [IC50 >100 uM]
CYP2C9 936	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50-51	no [IC50 >100 uM]
CYP2D6 1118	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50-51	no [IC50 >100 uM]
CYP3A4 1601	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50-51	no [IC50 >100 uM]
MRP1 97	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/20080116/	no
MRP2 182	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/20080116/	no
MRP5 39	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/20080116/	no
OATP1A2 57	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/22227272/	no
OCT2 316	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/22227272/	no
OCT3 75	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/22227272/	no
UGT1A1 393	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
UGT1A10 273	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
UGT1A6 289	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
UGT1A7 221	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
UGT1A8 266	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
UGT1A9 357	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
UGT2B15 191	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
UGT2B17 203	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
UGT2B4 233	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
UGT2B7 362	substrate 3113 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362000_A100_1.pdf#PAGE=31, https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_K100_1.pdf#page=50 Page: (PMDA) 31, (PMDA_K100) 50	no
BCRP 515	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/25645391/	yes
OATP1B3 319	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/22227272/	yes
OATP2B1 101	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/22227272/	yes
OCT1 302	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/27317943/, https://go.drugbank.com/drugs/DB00555	yes
P-gp 1400	substrate 3113 Sources: https://pubmed.ncbi.nlm.nih.gov/18824002/, https://go.drugbank.com/drugs/DB00555	yes
UGT 173	substrate 3113 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2020/020241s058,020764s051,022251s022lbl.pdf#page=34 Page: 34.0	yes

Tox targets

Target	Modality	Activity	Metabolite	Clinical evidence
Cav1.2 48	inhibitor 1489 Sources: https://pubmed.ncbi.nlm.nih.gov/25087753/, https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwxOTQwIiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDc0MSJ9fQ%3D%3D
Nav1.5 96	inhibitor 1489 Sources: https://pubs.acs.org/doi/10.1021/jm801180p
hERG 1507	inhibitor 1489 Sources: https://www.pmda.go.jp/drugs/2008/P200800041/34027800_22000AMX02362_H100_1.pdf#page=34 Page: (PMDA_H100) 34

Sourcing

Vendor/Aggregator	ID	URL
ChEBI	CHEBI:6367	https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:6367
ChemicalBook	CB4166704	https://www.chemicalbook.com/ChemicalProductProperty_EN_CB4166704
MolPort	MolPort-003-666-744	https://www.molport.com/shop/molecule-link/MolPort-003-666-744
Selleck Chemicals	lamotrigine	http://www.selleckchem.com/products/lamotrigine.html
ZINC	ZINC000000013156	http://zinc15.docking.org/substances/ZINC000000013156
eMolecules	578746	https://www.emolecules.com/cgi-bin/more?vid=578746

PubMed

Title	Date	PubMed
Adverse effects of antiepileptic drugs on bone structure: epidemiology, mechanisms and therapeutic implications.	2001	11524035
Bipolar rapid cycling: focus on depression as its hallmark.	2001	11469674
Introduction: the role of anticonvulsants as mood stabilizers.	2001	11469673
Cognitive side effects of anticonvulsants.	2001	11469672
Effects of antiepileptic drugs on cognition.	2001	11422358
The long-term use of vigabatrin and lamotrigine in patients with severe childhood onset epilepsy.	2001	11277363
Incompleteness of lamotrigine data.	2001	11235819
Case reports.	2001 Apr	11437624
Epilepsy and the ovary (cutting out the hysteria).	2001 Apr	11437623
Important changes in the treatment of epilepsy.	2001 Apr	11310529
The combination of lamotrigine and mild hypothermia prevents ischemia-induced increase in hippocampal glutamate.	2001 Apr	11294451
Novel treatments for bipolar disorder.	2001 Apr	11281816
[Sensory neuropathy in HIV infection: pathogenesis and therapy].	2001 Apr 14	11332255
Toxicologic causes of giggling.	2001 Aug	11512553
Newer antiepileptic drugs: advantages and disadvantages.	2001 Aug	11504596
Effect of divalproex-lamotrigine combination therapy in frontal lobe seizures.	2001 Aug	11493167
Effect of gabapentin and lamotrigine on mechanical allodynia-like behaviour in a rat model of trigeminal neuropathic pain.	2001 Aug	11427326
Peri-marketing surveillance of lamotrigine in The Netherlands: doctors' and patients' viewpoints.	2001 Feb	11344584
Infantile spasms.	2001 Feb	11275456
Valproate, but not lamotrigine, induces ovarian morphological changes in Wistar rats.	2001 Feb	11256757
Relative bioavailability of lamotrigine chewable dispersible tablets administered rectally.	2001 Feb	11213851
[Lamotrigine in refractory partial and general epilepsies].	2001 Jan 1-15	11293097
[Glutaminergic hypothesis of schizophrenia: clinical research studies with ketamine].	2001 Jan-Feb	11294039
The role of new antiepileptic drugs.	2001 Jul	11474769
Antiepileptic drug utilization: a Danish prescription database analysis.	2001 Jul	11442436
Neuroprotective effects of lamotrigine and remacemide on excitotoxicity induced by glutamate agonists in isolated chick retina.	2001 Jul	11421593
Normal growth during lamotrigine monotherapy in pediatric epilepsy patients -- a prospective evaluation of 103 children and adolescents.	2001 Jul	11395290
Lamotrigine in two cases of Rett syndrome.	2001 Jul	11377003
Therapeutic drug monitoring of antiepileptics by capillary electrophoresis. Characterization of assays via analysis of quality control sera containing 14 analytes.	2001 Jul 27	11521893
Preclinical evaluation of CHF3381 as a novel antiepileptic agent.	2001 Jun	11378157
Single-dose pharmacokinetics of lamotrigine in children: influence of age and antiepileptic comedication.	2001 Jun	11360028
[A casuistic report on Lamotrigine].	2001 Jun 20	11488193
[SUNCT syndrome sensitive to lamotrigine].	2001 Jun 30	11484404
When treating patients with schizophrenia, what clinical points should be considered if lamotrigine is chosen to augment clozapine?	2001 Mar	11496920
Absence epilepsy with fast rhythmic discharges during sleep: an intermediary form of generalized epilepsy?	2001 Mar	11442152
On the association between valproate and polycystic ovary syndrome.	2001 Mar	11442143
A randomized open-label study of gabapentin and lamotrigine in adults with learning disability and resistant epilepsy.	2001 Mar	11407953
New generation anti-epileptics for facial pain and headache.	2001 Mar	11379275
Influence of retigabine on the anticonvulsant activity of some antiepileptic drugs against audiogenic seizures in DBA/2 mice.	2001 Mar	11284448
pH-stat strategy and hypothermia of 25 degrees C alone should protect the central nervous system consistently from 75 minutes of circulatory arrest.	2001 Mar	11241102
[Optimal use of lamotrigine in clinical practice: results of an open multicenter trial in refractory epilepsy].	2001 May	11438772
Influence of cirrhosis on lamotrigine pharmacokinetics.	2001 May	11421997
Modulation of K+-evoked [3H]-noradrenaline release from rat and human brain slices by gabapentin: involvement of KATP channels.	2001 May	11383714
Mechanisms influencing stimulus-response properties of the human corticospinal system.	2001 May	11336911
[Juvenile myoclonic epilepsy].	2001 May 16-31	11424054
Lamotrigine analysis in blood and brain by high-performance liquid chromatography.	2001 May 5	11393695
Differential cognitive and behavioral effects of carbamazepine and lamotrigine.	2001 May 8	11342682
Pharmacologic management of epilepsy in the elderly.	2001 May-Jun	11372907
Effect of lamotrigine treatment on status epilepticus-induced neuronal damage and memory impairment in rat.	2001 Sep	11518623
Treatment-resistant bipolar disorder.	2001 Winter	11280956

Patents

Sample Use Guides

In Vivo Use Guide

Epilepsy—Conversion From Adjunctive Therapy to Monotherapy: The recommended maintenance dose of LAMICTAL (lamotrigine) as monotherapy is 500 mg/day given in 2 divided doses.

Route of Administration: Oral

In Vitro Use Guide

In vitro, lamotrigine inhibited rat brain A-type of monoamine oxidase (MAO) activities with Ki values (MAO-A, 15 uM; MAO-B, 18 uM) potentially within the therapeutic range for this drug. The effects of lamotrigine on the MAO-A activities of rat brain and human liver preparations were almost identical suggesting minimal species or tissue variation

Substance Class	Chemical Created by `admin` on `Fri Jun 25 21:01:18 UTC 2021` Edited by `admin` on `Fri Jun 25 21:01:18 UTC 2021`
Record UNII	U3H27498KS
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

LAMOTRIGINE

Official Name

English

LAMOTRIGINE [HSDB]

Common Name

English

LAMOTRIGINE [EP]

Common Name

English

LAMICTAL

Brand Name

English

LAMOTRIGINE [JAN]

Common Name

English

LAMOTRIGINE [MART.]

Common Name

English

LAMOTRIGINE [INN]

Common Name

English

1,2,4-TRIAZINE-3,5-DIAMINE, 6-(2,3-DICHLOROPHENYL)

Common Name

English

LAMOTRIGINE [EP MONOGRAPH]

Common Name

English

LAMOTRIGINE [MI]

Common Name

English

LAMOTRIGINE [USP]

Common Name

English

LAMOTRIGINE [WHO-DD]

Common Name

English

BW-430C

Code

English

LAMOTRIGINE [ORANGE BOOK]

Common Name

English

LAMOTRIGINE [USP-RS]

Common Name

English

LAMOTRIGINE [USP MONOGRAPH]

Common Name

English

LAMOTRIGINE [USAN]

Common Name

English

3,5-DIAMINO-6-(2,3-DICHLOROPHENYL)-AS-TRIAZINE

Common Name

English

BW 430C

Code

English

NSC-759171

Code

English

Classification Tree Code System Code

NDF-RT

N0000175753