I am Dr Mbong. You are right, Minocycline
has severe side effects on the fetus if someone takes it while pregnant or gets pregnant while taking it.
The reason one has to do everything possible not to get pregnant while on it. The reason for the need of a back up method. Also some drugs like Minocycline can modify (reduce) the effectiveness of other medications like oral pills
and make them less effective and as such expose your daughter to a greater likelihood of getting pregnant is she has unprotected sex.
So she really needs a back up method like condom (she can insist the guys use male condoms
) or she adds some other feminine family method to wat she is taking like diaphragm etc.