Home About

Lamotrigine

LAMOTRIGINE

Manufacturer: AvKARE

Score: 144.0

Quick Summary

Lamotrigine is an antiepileptic drug used in the treatment of epilepsy and bipolar disorder. It is used as adjunctive therapy for partial-onset seizures, primary generalized tonic-clonic seizures, and generalized seizures of Lennox-Gastaut syndrome in patients aged 2 years and older. Lamotrigine is also used for the maintenance treatment of bipolar I disorder to delay the time to occurrence of mood episodes. The drug has a boxed warning for serious skin rashes, including Stevens-Johnson syndrome and toxic epidermal necrolysis, which can be life-threatening. Important safety information includes the risk of suicidal thoughts and behaviors, and contraindications include hypersensitivity to the drug or its ingredients.

Key Clinical Findings and Indications

  • Adjunctive therapy for partial-onset seizures, primary generalized tonic-clonic seizures, and generalized seizures of Lennox-Gastaut syndrome
  • Maintenance treatment of bipolar I disorder to delay the time to occurrence of mood episodes
  • Used in patients aged 2 years and older

Important Safety Information

Warning

Serious skin rashes, including Stevens-Johnson syndrome and toxic epidermal necrolysis, can occur

Contraindications

  • Hypersensitivity to the drug or its ingredients

Adverse Reactions

  • Dizziness
  • Headache
  • Diplopia
  • Ataxia
  • Nausea
  • Vomiting
  • Rash
  • Somnolence

Dosing Recommendations

General Guidance

Dose adjustments may be necessary based on concomitant medications, renal or hepatic impairment, and pregnancy status

Epilepsy

Adult Dose

25 mg every other day, increasing to 100-400 mg/day

Pediatric Dose

0.15 mg/kg/day, increasing to 1-5 mg/kg/day

Bipolar disorder

Adult Dose

25 mg every other day, increasing to 100-400 mg/day

Pediatric Dose

Not established

Special Population Considerations

Pregnancy

  • Category C
  • Risk of birth defects and fetal harm
  • Monitor fetal growth and development

Nursing Mothers

  • Present in breast milk
  • Monitor infant for adverse reactions
  • Consider alternative feeding methods

Pediatric Use

  • Approved for use in patients aged 2 years and older
  • Dosing recommendations vary by age and weight
  • Monitor for adverse reactions and adjust dose as needed

Geriatric Use

  • No specific dosing recommendations
  • Monitor for adverse reactions and adjust dose as needed
  • Consider decreased renal function and potential for drug interactions