Category B. This med is considered safe during pregnancy as a category b med. Animal studies do not demonstrate any toxic efect during fetal development, but not enough data on human use is available to consider it safer.
Yes. There is very little information on this medication in pregnancy. However, it is used in HIV infection which can be extremely risky in pregnancy. You should stay on your HIV medications even if you get pregnant. This reduces your risk and the risk of spreading HIV to your baby.