Open main menu

Psychiatrienet β

Combining-Lamotrigine-Carbamazepine

Revision as of 15:22, 22 April 2010 by Ashni (talk | contribs)

{{Drugcombi | base = lamotrigine | add = carbamazepine | info =

  • This combination of drugs may have possible synergistic effects. However, the pharmacokinetic drug interactions will influence the plasma levels. Dose adaptation is recommended for this combination. [1]

| start =

  • Start carbamazepine with a daily dose of 200 mg and increase dose based serum concentration if necessary. Check lamotrigines effect after 2 weeks of therapy and adapt dose if necessary. [2]

| cave =

  • Abrupt stop of carbamazepine can cause serious lamotrigine rash as lamotrigine levels increase.[3]
  • Carbamazepine likely speeds the metabolism of lamotrigine, but the clinical significance is unclear.[4][5]
  • Lamotrigine may increase blood levels of carbamazepine metabolites, which can result in neurotoxicity (data about this are contradictory).[4][5]
  • These two agents have less significant pharmacologic interactions than do lamotrigine and valproate.[4][5]