The leaves of this plant that is native from the Mediterranean basin are used. It contains essential oil (alpha-pinene and borneol, flavonoids, tannins and rich in oleoresin labdanum (do not confuse with laudanum) with toxic effect on kidney, nervous and hematologic systems.Traditional use without scientific evidence on effectiveness has been: anxiety, relief of gastric ache, muscle ache and joint pain.It may cause contact dermatitis. At latest update no published data on excretion into breast milk were found. Topical use is lacking of risk but do not apply it on the breast.Moderate consumption would not pose a risk during breastfeeding. It may be prudent to avoid using it during the neonatal period (within first month after birth) and in cases of prematurity. Cautions when taking herbal teas:1. Make sure it is obtained from a reliable source: reportedly, poisonings have occurred due to confusion after using another plant with toxic effects, some others contain heavy metals that may cause poisoning and others may cause food poisoning due to contamination with bacteria or fungi.2. Do not take it excessively. "Natural" products are not always good in any amount: plants contain active substances from which are made many compounds of our traditional pharmacopoeia that can cause poisoning if consumed in exaggerated quantities or for long periods.