Which folic acid dose is recommended for pregnancy conceived while on anti-epileptic therapy?

• A. 0.4 mg
• B. 1 mg
• C. 2 mg
• D. 5 mg

Answer: (D)

When a pregnancy is conceived while the mother is taking anti-epileptic drugs, the risk of neural tube defects in the baby is higher. Folic acid supports early fetal development and can reduce this risk. Anti-epileptic medications can interfere with folate metabolism, so a higher folate intake is advised. Therefore, the best approach is a 5 mg daily dose of folic acid, started before conception if possible and continued through the first trimester. After this period, many guidelines allow stepping down to the standard dose (about 0.4 mg daily) depending on the AED and risk, but the initial high-dose approach is recommended in this scenario. Lower doses like 0.4 mg, 1 mg, or 2 mg are not as protective for pregnancies involving AED exposure.