This is formulated to help deal with allergies.  It should be safe while pregnant and nursing.  (ALWAYS consult with your physician before starting any medicine- natural or otherwise).  The flavor of this is somewhat earthy, with a strong hint of spearmint. Ingredients are organic.Ingredients: elderberries, nettle, goldenrod, alfalfa, spearmint, astragalus root, rosehips, and hibiscus.