HIGHLIGHTS OF PRESCRIBING INFORMATION ----------------------------------CONTRAINDICATIONS---------------------------------­ These highlights do not include all the information needed to use Hypersensitivity to the drug or its ingredients. (Boxed Warning, 4) LAMICTAL XR safely and effectively. See full prescribing information for LAMICTAL XR. -------------------------- WARNINGS AND PRECAUTIONS -------------------------­ Life-threatening serious rash and/orrash-related death: Discontinue at the LAMICTAL XR (lamotrigine) extended-release tablets, for oral use first signof rash, unless therashis clearly not drug related. (Boxed Initial U.S. Approval: 1994 Warning, 5.1) Hemophagocytic lymphohistiocytosis: Consider this diagnosis and evaluate WARNING: SERIOUS SKIN RASHES patients immediately if they develop signs or symptoms of systemic See full prescribing information for complete boxed warning. inflammation. Discontinue LAMICTAL XR if an alternative etiology is not Cases of life-threatening serious rashes, including Stevens-Johnson established. (5.2) syndrome and toxic epidermal necrolysis, and/or rash-related death Fatal or life-threatening hypersensitivity reaction: Multiorgan have been caused by lamotrigine. The rate of serious rash is greater in hypersensitivity reactions,also known as drug reaction with eosinophilia pediatric patients than in adults. Additional factors that may increase and systemic symptoms, may be fatal or life threatening.Early signs may the risk of rash include: include rash, fever, and lymphadenopathy. These reactions may be coadministration with valproate. associated with other organ involvement, such as hepatitis, hepatic failure, exceeding recommended initial dose of LAMICTAL XR. blood dyscrasias,or acutemultiorgan failure. LAMICTAL XR should be exceeding recommended dose escalation for LAMICTAL XR. discontinued if alternate etiology for this reaction is not found. (5.3) (5.1) Blood dyscrasias (e.g., neutropenia, thrombocytopenia, pancytopenia):May Benign rashes are also caused by lamotrigine; however, it is not occur, either with or without an associated hypersensitivity syndrome. possible to predict which rashes will prove to be serious or life Monitor for signs of anemia, unexpected infection, or bleeding. (5.4) threatening. LAMICTAL XR should be discontinued at the first sign Suicidal behavior and ideation: Monitor for suicidal thoughts orbehaviors. of rash, unless the rash is clearly not drug related. (5.1) (5.5) Asepticmeningitis: Monitor for signs of meningitis. (5.6) ------------------------------ RECENT MAJOR CHANGES -----------------------------­ Medication errors due to product name confusion: Strongly advisepatients Warnings and Precautions, Hemophagocytic 5/2018 to visually inspect tablets to verify the received drug is correct. (5.7, 16, 17) Lymphohistiocytosis (5.2) ---------------------------------- ADVERS E REACTIONS ---------------------------------­ -------------------------------INDICATIONS AND USAGE------------------------------­ Most common adversereactions with useas adjunctive therapy (treatment LAMICTAL XR is indicated for: difference between LAMICTAL XR and placebo ≥4%) were dizziness, adjunctive therapy for primary generalized tonic-clonic seizures and tremor/intention tremor, vomiting, and diplopia. (6.1) partial-onset seizures with or without secondary generalization in patients Most common adverse reactions with use as monotherapy were similar to aged 13 years and older. (1.1) those seen with previous trials conducted with immediate-release conversion to monotherapy in patients aged 13 years and older with partial- lamotrigine and LAMICTAL XR. (6.1) onset seizures who are receiving treatment with a single AED. (1.2) To report SUSPECTED ADVERS E REACTIONS, contact Limitation of use:Safety and effectiveness in patients youngerthan 13 years GlaxoSmithKline at 1-888-825-5249 or FDA at 1-800-FDA-1088 or have not been established. (1.3) www.fda.gov/medwatch. --------------------------DOSAGE AND ADMINISTRATION ------------------------­ ---------------------------------- DRUG INTERACTIONS ---------------------------------­ Do not exceed the recommended initial dosage and subsequent dose Valproate increases lamotrigine concentrations more than 2-fold. (7, 12.3) escalation. (2.1) Carbamazepine, phenytoin, phenobarbital, primidone, and rifampin Initiation of adjunctivetherapy and conversion to monotherapy requires decrease lamotrigine concentrations by approximately 40%. (7, 12.3) slow titration dependenton concomitant AEDs; theprescriber must refer to Estrogen-containing oral contraceptives decrease lamotrigine the appropriate algorithm in Dosage and Administration. (2.2, 2.3) concentrations by approximately 50%. (7, 12.3) Adjunctive therapy: Target therapeuticdos age range is 200 to 600 mg Protease inhibitors lopinavir/ritonavir and atazanavir/lopinavir decrease daily and is dependent on concomitant AEDs. (2.2) lamotrigine exposure by approximately 50% and 32%, respectively. (7, Conversion to monotherapy: Target therapeuticdosagerange is 250 to 12.3) 300 mg daily. (2.3) Coadministration with organic cationic transporter2 substrates with narrow Conversion from immediate-release lamotrigine to LAMICTAL XR: The therapeutic index is not recommended (7, 12.3) initial doseof LAMICTAL XR shouldmatch the totaldaily doseof the immediate-release lamotrigine. Patients should be closely monitored for -------------------------- USE IN SPECIFIC POPULATIONS -------------------------­ seizure control after conversion.(2.4) Pregnancy:Based on animal data may causefetal harm. (8.1) Do notrestart LAMICTAL XR in patients who discontinueddueto rash Hepatic impairment: Dosage adjustments required in patients with unless thepotential benefits clearly outweigh the risks. (2.1, 5.1) moderate and severe liver impairment. (2.1, 8.6) Adjustments to maintenance doses will be necessary in most patients Renal impairment: Reduced maintenance doses may be effective for starting or stopping estrogen-containing oral contraceptives.(2.1, 5.8) patients with significant renal impairment. (2.1, 8.7) Discontinuation: Taper over a period of at least 2 weeks (approximately 50% dose reduction per week). (2.1, 5.9) See 17 for PATIENT COUNSELING INFORMATION and Medication Guide. ------------------------ DOSAGE FORMS AND S TRENGTHS -----------------------­ Revised: 7/2018 Extended-release tablets: 25 mg, 50 mg, 100 mg, 200 mg, 250 mg, and 300 mg. (3.1, 16) FULL PRESCRIBING INFORMATION: CONTENTS* WARNING: SERIOUS SKIN RASHES 2.3 Conversion from Adjunctive Therapy to 1 INDICATIONS AND USAGE Monotherapy 1.1 Adjunctive Therapy 2.4 Conversion from Immediate-Release Lamotrigine 1.2 Monotherapy Tablets to LAMICTAL XR 1.3 Limitation of Use 3 DOSAGE FORMS AND STRENGTHS 2 DOSAGE AND ADMINISTRATION 3.1 Extended-Release Tablets 2.1 General Dosing Considerations 4 CONTRAINDICATIONS 2.2 Adjunctive Therapy for Primary Generalized 5 WARNINGS AND PRECAUTIONS Tonic-Clonic and Partial-Onset Seizures 5.1 Serious Skin Rashes [see Boxed Warning] 1 Reference ID: 4295686 5.2 Hemophagocytic Lymphohistiocytosis 8.2 Labor and Delivery 5.3 Multiorgan Hypersensitivity Reactions and Organ 8.3 Nursing Mothers Failure 8.4 Pediatric Use 5.4 Blood Dyscrasias 8.5 Geriatric Use 5.5 Suicidal Behavior and Ideation 8.6 Hepatic Impairment 5.6 Aseptic Meningitis 8.7 Renal Impairment 5.7 Potential Medication Errors 10 OVERDOSAGE 5.8 Concomitant Use with Oral Contraceptives 10.1 Human Overdose Experience 5.9 Withdrawal Seizures 10.2 Management of Overdose 5.10 Status Epilepticus 11 DESCRIPTION 5.11 Sudden Unexplained Death in Epilepsy (SUDEP) 12 CLINICAL PHARMACOLOGY 5.12 Addition of LAMICTAL XR to a Multidrug 12.1 Mechanism of Action Regimen that Includes Valproate 12.2 Pharmacodynamics 5.13 Binding in the Eye and Other Melanin-Containing 12.3 Pharmacokinetics Tissues 13 NONCLINICAL TOXICOLOGY 5.14 Laboratory Tests 13.1 Carcinogenesis, Mutagenesis,Impairment of 6 ADVERS E REACTIONS Fertility 6.1 Clinical Trial Experience with LAMICTAL XR for 14 CLINICAL STUDIES Treatment of Primary Generalized Tonic-Clonic 14.1 Adjunctive Therapy for Primary Generalized and Partial-Onset Seizures Tonic-Clonic Seizures 6.2 Other AdverseReactions Observed during the 14.2 Adjunctive Therapy for Partial-Onset Seizures Clinical Development of Immediate-Release 14.3 Conversion to Monotherapy for Partial-Onset Lamotrigine Seizures 6.3 Postmarketing Experience with Immediate-Release 15 REFERENCES Lamotrigine 16 HOW SUPPLIED/STORAGE AND HANDLING 7 DRUG INTERACTIONS 17 PATIENT COUNSELING INFORMATION 8 USE IN SPECIFIC POPULATIONS *Sections or subsectionsomitted from thefull prescribing information are not 8.1 Pregnancy listed. FULL PRESCRIBING INFORMATION WARNING: SERIOUS SKIN RASHES LAMICTAL XR™ can cause serious rashes requiring hospitalization and discontinuation of treatment. The incidence of these rashes, which have included Stevens-Johnson syndrome, is approximately 0.8% (8 per 1,000) in pediatric patients (aged 2 to 16 years) receiving immediate-release lamotrigine as adjunctive therapy for epilepsy and 0.3% (3 per 1,000) in adults on adjunctive therapy for epilepsy. In a prospectively followed cohort of 1,983 pediatric patients (aged 2 to 16 years) with epilepsy taking adjunctive immediate-release lamotrigine, there was 1 rash-related death. LAMICTAL XR is not approved for patients younger than 13 years. In worldwide postmarketing experience, rare cases of toxic epidermal necrolysis and/or rash-related death have been reported in adult and pediatric