Many herbs should never be used during pregnancy. Those containing high quantities of volatile oils (some of which could be toxic, such as pennyroyal), or alkaloids, such as barberry, can affect your central nervous system as well as interfere with the development of your baby’s
Harsh bitter, such as Mugwort, that strongly stimulate digestion and metabolism should be avoided, as should strong laxatives such as senna, buckthorn, cascara Sagrada, and rhubarb; bitters and laxatives can trigger uterine contractions. Herbs with strong hormonal properties are not advised, including sage and licorice.
Consult your health-care provider if you have doubts about the safety of any herb.
Excerpted with permission from Herbs for Health magazine, March/April 1997 issue, by Aviva Romm. Visit Herbs for Health online at www.discoverherbs.com; call (515) 247-7571.