Lamictal XR dosage* Lamictal XR dosage† with carbamazepine, phenytoin, phenobarbital, or primidone: Week 1: 25 mg every other day: 25 mg once per day: 50 mg once per day: Week 2: Week 8 and on (maintenance dosage) 200–250 mg once per day
100mg x 7 tabs—1; XR tabs—30; XR Conversion from Adjunctive Therapy with Antiepileptic Drugs other than Carbamazepine, Phenytoin, Phenobarbital, Primidone, or Valproate to Monotherapy with LAMICTAL XR
Generic lamotrigine ER is covered by most Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower
Then increase dose every 1 to 2 weeks by 25 to 50 mg/day
Tablets must be swallowed whole and must not be chewed, crushed, or divided
Take once daily
Oral disintegrating tablets: 25 mg, 50 mg, 100 mg, 200 mg; Lamictal® XR Extended-release tablets: 25mg, 50 mg, 100 mg, 200 mg, 250 mg, 300 mg; Subvenite® Tablets: 25 mg, 100 mg, 150 mg, 200 mg; Subvenite Blue Starter Kit® Tablets: 25 mg; All FDA warnings are at the end of this fact sheet
Extended-release Lamictal XR is for use only in adults and children who are at least 13 years old
Lamictal chewable dispersible tablets may be swallowed whole Lamotrigine is very slightly soluble in water (0
A single prescription written or e-prescribed “DAW-1” for the Lamotrigine Starter Kit helps prescribers titrate their patients appropriately to the therapeutic dose, and may help reduce patient confusion and improve compliance 2,3,4
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dry mouth, nausea, vomiting, stomach pain, diarrhea; fever, sore throat, runny nose; drowsiness, tired feeling; back pain; or