A 9-year-old boy is diagnosed with generalized tonic-clonic seizures and myoclonic seizures. Which medication is most appropriate to start initially?

• A. Valproate
• B. Lamotrigine
• C. Levetiracetam
• D. Phenytoin

Answer: (C)

When a patient has more than one seizure type, you want a treatment that covers a broad range of seizures with a good safety profile in a child. Levetiracetam fits this well: it has broad-spectrum activity and is effective for both generalized tonic-clonic seizures and myoclonic seizures, which fits the presentation here. It’s also well tolerated in children, has minimal drug interactions, and is not heavily dependent on liver metabolism, reducing concern for liver toxicity that can limit other options.

Valproate is highly effective for myoclonic seizures, but in a young patient it raises concerns about liver toxicity and, in females, teratogenic risk; these safety issues often steer clinicians to consider alternatives first. Lamotrigine can be helpful for generalized seizures but may be less reliable for myoclonus and requires slow dose titration to avoid rash. Phenytoin is associated with more adverse effects and interactions and is not ideal when multiple seizure types are present.

So starting with levetiracetam offers broad seizure control with a favorable pediatric safety profile, making it a prudent initial choice.