What are common side effects of valproic acid in pediatric patients and a major safety concern?

• A. Hepatotoxicity, hyperammonemia, teratogenicity; monitor liver enzymes and ammonia levels
• B. Weight gain and hyperactivity
• C. Nephrotoxicity only
• D. Visual disturbances only

Answer: (A)

Valproic acid in pediatrics carries a significant safety profile that centers on liver and metabolic risks, plus a separate pregnancy-related concern. The most important idea is that liver injury is a real, dose- and age-related possibility, especially in younger children, so watching liver function tests (like AST and ALT) is essential when starting treatment and during follow-up. Hyperammonemia can occur as well, potentially leading to encephalopathy if ammonia builds up, so monitoring ammonia levels or watching for confusion, vomiting, or lethargy helps catch trouble early. Teratogenicity is a major safety issue because exposure during pregnancy markedly increases neural tube defects and other congenital problems; this is why valproate is contraindicated in pregnancy and requires careful counseling for females of reproductive potential.

Other options don’t align with the strongest safety signals in children. Weight gain and hyperactivity aren’t the defining, high-risk adverse effects of valproate, and nephrotoxicity or visual disturbances are not the principal concerns driving monitoring like liver enzymes and ammonia levels.