LaMICtal XR Patient Titration Kit Blue 25 mg (21), 50 mg (7) 28 Count
RxNorm 900984

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 900984 represents a standardized clinical drug concept used for cross-system interoperability. This concept aggregates multiple Atom IDs (AUIs), which are specific naming variations and synonyms used across pharmaceutical databases to ensure accurate medication mapping for: LaMICtal XR Patient Titration Kit Blue 25 mg (21), 50 mg (7) 28 Count.

The following semantic concepts and normalized strings are associated with this clinical entity:

SY
Lamictal XR Blue Patient Titration Kit
AUI:3642951
View
TMSY
LaMICtal XR Blue Patient Titration Kit
AUI:3728175
View
SY
Lamictal XR Blue Patient Titration Kit (for Patients Taking Valproate)
AUI:3642950
View
TMSY
LaMICtal XR Blue Patient Titration Kit (for Patients Taking Valproate)
AUI:3725525
View
PSN
LaMICtal XR Patient Titration Kit Blue 25 mg (21), 50 mg (7) 28 Count
AUI:6375205
View
BPCK
{21 (24 HR lamotrigine 25 mg Extended Release Oral Tablet [Lamictal]) / 7 (24 HR lamotrigine 50 mg Extended Release Oral Tablet [Lamictal]) } Pack [Lamictal XR Blue Patient Titration Kit (for Patients Taking Valproate)]
AUI:6350258
View
TMSY
{21 (24 HR lamoTRIgine 25 mg Extended Release Oral Tablet [LaMICtal]) / 7 (24 HR lamoTRIgine 50 mg Extended Release Oral Tablet [LaMICtal]) } Pack [LaMICtal XR Blue Patient Titration Kit (for Patients Taking Valproate)]
AUI:6378368
View

This clinical crossover tool is designed for healthcare professionals, pharmacists, and data analysts to safely compare substitute products and manage medication interoperability.

SYPrescribable

Synonym (SY):
Lamictal XR Blue Patient Titration Kit
(Atom ID: 3642951)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
Lamictal XR Blue Patient Titration Kit
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
900984
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3642951
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
900984
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.
TMSYPrescribable

Tall Man Lettering Synonym (TMSY):
LaMICtal XR Blue Patient Titration Kit
(Atom ID: 3728175)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
LaMICtal XR Blue Patient Titration Kit
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
900984
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3728175
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
TMSY
Tall Man Lettering Synonym (Tall Man Lettering synonym of another TTY, given to distinguish between commonly confused drugs.)
Source Code
900984
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.
SYPrescribable

Synonym (SY):
Lamictal XR Blue Patient Titration Kit (for Patients Taking Valproate)
(Atom ID: 3642950)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
Lamictal XR Blue Patient Titration Kit (for Patients Taking Valproate)
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
900984
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3642950
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
900984
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.
TMSYPrescribable

Tall Man Lettering Synonym (TMSY):
LaMICtal XR Blue Patient Titration Kit (for Patients Taking Valproate)
(Atom ID: 3725525)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
LaMICtal XR Blue Patient Titration Kit (for Patients Taking Valproate)
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
900984
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3725525
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
TMSY
Tall Man Lettering Synonym (Tall Man Lettering synonym of another TTY, given to distinguish between commonly confused drugs.)
Source Code
900984
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.
PSNPrescribable

Prescribable Name (PSN):
LaMICtal XR Patient Titration Kit Blue 25 mg (21), 50 mg (7) 28 Count
(Atom ID: 6375205)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
LaMICtal XR Patient Titration Kit Blue 25 MG (21), 50 MG (7) 28 Count
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
900984
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6375205
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
PSN
Prescribable Name (Synonym of another TTY, given for clarity and for display purposes in electronic prescribing applications. Only one PSN per concept.)
Source Code
900984
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.
BPCKPrescribable

Brand Name Pack (BPCK):
{21 (24 HR lamotrigine 25 mg Extended Release Oral Tablet [Lamictal]) / 7 (24 HR lamotrigine 50 mg Extended Release Oral Tablet [Lamictal]) } Pack [Lamictal XR Blue Patient Titration Kit (for Patients Taking Valproate)]
(Atom ID: 6350258)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
{21 (24 HR lamotrigine 25 MG Extended Release Oral Tablet [Lamictal]) / 7 (24 HR lamotrigine 50 MG Extended Release Oral Tablet [Lamictal]) } Pack [Lamictal XR Blue Patient Titration Kit (for Patients Taking Valproate)]
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
900984
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6350258
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
BPCK
Brand Name Pack ({# (Ingredient Strength Dose Form) / # (Ingredient Strength Dose Form)} Pack [Brand Name])
Source Code
900984
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.

Technical Attributes & Logic

RXN HUMAN DRUG
US
Drug available for use in Humans
TMSYPrescribable

Tall Man Lettering Synonym (TMSY):
{21 (24 HR lamoTRIgine 25 mg Extended Release Oral Tablet [LaMICtal]) / 7 (24 HR lamoTRIgine 50 mg Extended Release Oral Tablet [LaMICtal]) } Pack [LaMICtal XR Blue Patient Titration Kit (for Patients Taking Valproate)]
(Atom ID: 6378368)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
{21 (24 HR lamoTRIgine 25 MG Extended Release Oral Tablet [LaMICtal]) / 7 (24 HR lamoTRIgine 50 MG Extended Release Oral Tablet [LaMICtal]) } Pack [LaMICtal XR Blue Patient Titration Kit (for Patients Taking Valproate)]
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
900984
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6378368
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
TMSY
Tall Man Lettering Synonym (Tall Man Lettering synonym of another TTY, given to distinguish between commonly confused drugs.)
Source Code
900984
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.

Patient Education

Lamotrigine


Lamotrigine extended-release (long-acting) tablets are used with other medications to treat certain types of seizures in patients who have epilepsy. All types of lamotrigine tablets (tablets, orally disintegrating tablets, and chewable tablets) other than the extended-release tablets are used alone or with other medications to treat seizures in people who have epilepsy or Lennox-Gastaut syndrome (a disorder that causes seizures and often causes developmental delays). All types of lamotrigine tablets other than the extended-release tablets are also used to increase the time between episodes of depression, mania (frenzied or abnormally excited mood), and other abnormal moods in patients with bipolar I disorder (manic-depressive disorder; a disease that causes episodes of depression, episodes of mania, and other abnormal moods). Lamotrigine has not been shown to be effective when people experience the actual episodes of depression or mania, so other medications must be used to help people recover from these episodes. Lamotrigine is in a class of medications called anticonvulsants. It works by decreasing abnormal electrical activity in the brain.
[Learn More]


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