Telavancin, an injectable antibiotic, has been approved for use in the US in order to try and over ocme the MRSA epidemic even though there are known associated birth defects.

There has been some reseach untertaken that has linked fetal heart defects with SSRIs and smoking.

Scientists in China studied the effect of Ginseng on developing rat embryos. Ginseng is used widely in herbal medicine as a stimulant. Pregnant women are advised not to ingest ginseng, especially in the first 3months of pregnancy.