《Asian Pacifc association for the study of liver (APASL) guidelines: hepatitis B virus in pregnancy》
Tenofovir alafenamide fumarate (TAF), is a new oral prodrug of tenofovir. As compared to TDF, TAF delivers targeted increased intracellular levels of tenofovir, thus reducing the circulating tenofovir exposure. The enhanced safety profile of TAF makes it the ideal antiviral to use in pregnant and breastfeeding HBsAg-positive mothers.