✅ Product Benefits

1. Controlled-release formulation
   Slow and sustained delivery reduces peak-related gastrointestinal irritation and improves tolerability compared to immediate-release formulations. 

2. Broad spectrum seizure control
   Indicated for partial, absence, tonic-clonic, myoclonic, atonic, and mixed seizure types, as well as febrile convulsion prophylaxis and post-traumatic seizure prevention. 

3. Also used in psychiatric and neurological conditions
   Serves as a mood stabilizer in bipolar disorder and for migraine prophylaxis, offering versatility beyond anticonvulsant use. 

4. Flexible dosing regimen
   Adults typically begin at 600 mg/day in divided doses, titrating as needed up to 2,500 mg/day. Children and migraine patients have tailored dosing strategies. 

5. Well-known mechanism via GABA modulation
   Increases gamma‑aminobutyric acid (GABA) in the brain to stabilize neuronal firing. 

6. Full safety monitoring guidance
   Common effects include nausea, sedation, tremor, gastrointestinal upset; 40% of patients may have elevated liver enzymes (often asymptomatic). Serious concerns include rare fulminant hepatitis, pancreatitis, hyperammonemia, and teratogenicity. Baseline and periodic liver tests are crucial—especially in children <2 years or women of childbearing potential. 

7. Significant drug interactions and contraindications
   Inhibits CYP2C9 and glucuronidation; interacts with phenobarbital, phenytoin, warfarin, aspirin, and others. Contraindicated in liver disease, porphyria, urea cycle disorders, and pregnancy due to high teratogenic risk. 

8. Affordable & widely available in Bangladesh
   Typically priced at ৳6 per tablet (~৳60 per strip of 10). Full-strength salts and syrup forms (200 mg, 300 mg CR, 500 mg CR, syrup) are accessible nationwide.