Expectant mothers should avoid anti-anxiety drugs. Since these anxiety
medications cross the placenta, their use during pregnancy
can lead to
dependence in the baby. Following birth, the baby will then go through withdrawal, with symptoms such as muscle weakness, irritability, sleep and breathing problems, and trembling. These anxiety drugs are excreted in breast milk, so they should be avoided while breastfeeding, too.
People with a history of substance abuse.