This means that it is not known whether buprenorphine and naloxone will be harmful to an unborn baby.
Use of buprenorphine and naloxone during
pregnancy may cause withdrawal symptoms
in a newborn baby. Do not take buprenorphine and naloxone if you are pregnant or could become pregnant during treatment.
Contrary to what you may have heard methadone is not safe during pregnancy, it is actually more dangerous to a baby than heroin. I am not sure why doctors prescribe it but they shouldn't.