Does using opiate pain relievers in early pregnancy cause birth defects?

There is no evidence that opiates cause birth defects although they may possibly increase the risk of miscarriage and still births. However, opiate use should not be stopped suddenly because this also increases the risk of miscarriage or premature labour. Gradual withdrawal over 12 weeks may be advised... A friend of mine was on Vicodin through the 1st & 2nd trimester & her baby boy was fine...