It's hard enough to adequately weigh the risks and benefits of taking certain medications while pregnant. But the bigger problem is when women and doctors simply don't know the risks. A review article that considered much of the research available and published in April says just that: too little is known about the ways prescription drugs taken by a pregnant mother may affect the developing baby. This is true even for the drugs used to treat chronic conditions, such as asthma, high blood pressure and mental health disorders. Avoid any unnecessary medication during pregnancy. ...