Which of the following is a possible side effect of valproic acid?

• A. Dizziness
• B. Hypertension
• C. Hair loss
• D. Cough

Answer: (A)

Valproic acid commonly causes central nervous system–related side effects. Dizziness is a frequent outcome because the drug can affect balance and coordination, especially when starting treatment or adjusting the dose. This CNS effect aligns with how valproic acid interacts with brain activity, making dizziness a plausible and typical side effect.

Hair loss can occur with valproate, but it’s less universally reported and not as immediately tied to the drug’s common CNS effects. Hypertension and cough are not characteristic side effects of valproic acid, which makes them less likely choices in this context.