Herbal tinctures are made by extracting the herbal constituents of a plant in a mixture of water and alcohol. Latin name - Peumus boldus

Avoid During Pregnancy & Breastfeeding
Herbs taken in theraputic dosages should be checked for safety and use during pregnancy and breast feeding in consultation with a qualified herbal practitioner. This herb should not be used internally during pregnancy unless prescribed by a qualified medical herbalist trained in the appropriate use of these substances. 

Caution:
Obstruction of bile ducts, severe liver disease. Only for short-term use, no more than 4 weeks. Use only in consultation with a qualified medical herbalist.