By and large, it is preferable that you avoid any and all medications if at all possible when you are pregnant. A number of medications are harmful to you and your fetus and can cause birth defects, premature labor and even developmental delays.
This includes over the counter medications that you might take for the common cold and other ailments. Even topical creams may be harmful to your fetus. Acne medication that contains Retin-A for example, should not be used during pregnancy. It’s best that you always consult with your physician prior to taking any medication during pregnancy.
The one medication that most physicians consider safe during pregnancy is Tylenol. Even so it is important that you consult with your healthcare provider prior to taking anything to ensure its safety. Some other medications, even some antibiotics, may be used in pregnancy when indicated, and when the benefits of taking the medication outweigh any risks associated with the medications use.