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Open Dose Calculator →Lamotrigine
Lamotrigine
💊 Used for: Partial seizures, Lennox-Gastaut syndrome, generalized seizures, atypical absence, atonic, myoclonic seizures. First-line for absence seizures.
Formulation
Tablet
Standard tablet
Dose Range
5–15 mg/kg
Max Daily
N/A
Frequency
Every 12 hours (slow titration)
Max Single
400 mg
Route: Oral
Dose by Child Weight
Based on formulation: Standard tablet
| Child's Weight | Dose (mg) | Dose (ml) | Max Daily Dose (mg) |
|---|---|---|---|
| 5 kg | 25–75 mg | 25.0–75.0 ml | — |
| 6 kg | 30–90 mg | 30.0–90.0 ml | — |
| 7 kg | 35–105 mg | 35.0–105.0 ml | — |
| 8 kg | 40–120 mg | 40.0–120.0 ml | — |
| 9 kg | 45–135 mg | 45.0–135.0 ml | — |
| 10 kg | 50–150 mg | 50.0–150.0 ml | — |
| 12 kg | 60–180 mg | 60.0–180.0 ml | — |
| 15 kg | 75–225 mg | 75.0–225.0 ml | — |
| 18 kg | 90–270 mg | 90.0–270.0 ml | — |
| 20 kg | 100–300 mg | 100.0–300.0 ml | — |
| 25 kg | 125–375 mg | 125.0–375.0 ml | — |
| 30 kg | 150–450 mg | 150.0–450.0 ml | — |
* Always verify with your doctor. doses are approximate and may vary based on condition and formulation.
⚠️ Important Warnings
- •Life-threatening skin rash risk. C/I: Significant hepatic disease.
💡 Use the DoseCare Calculator for interactive dose calculations tailored to your child's exact weight and formulation.
DoseCare is a decision support tool only. Always verify doses with a qualified healthcare provider.