Pregnancy: No clinical data on exposed pregnancies are available for tenofovir disoproxil fumarate. Tenofovir disoproxil fumarate should be used during pregnancy only if the potential benefit justifies the potential risk to the foetus.
However, given that the potential risks to developing human foetuses are unknown, the use of tenofovir disoproxil fumarate in women of childbearing potential must be accompanied by the use of effective contraception
Lactation: It is not known whether tenofovir is excreted in human milk. It is recommended that mothers being treated with tenofovir disoproxil fumarate do not breast-feed their infants. As a general rule, it is recommended that HIV infected women do not breast-feed their infants in order to avoid transmission of HIV to the infant.