Based on the American Herbal Products Association Botanical Safety Index, the following herbs should not be used during pregnancy. As a general rule, check with your midwife before using any herbal preparation.

• Aloes Powder:consult a health practitioner if you are pregnant or nursing
  
• Angelica Root
  
• Arnica Flowers: do not use internally during pregnancy
  
• Ashwaganha Root
  
• Barberry Root Bark
  
• Black Cohosh Root: do not use during pregnancy or nursing
  
• Bladderwrack: do not use during pregnancy or nursing
  
• Blessed Thistle Herb
  
• Bloodroot Root
  
• Blue Cohosh Root
  
• Buckthorn Aged Bark: consult a health practitioner if you are pregnant or nursing
  
• Cascara Sagrada Aged Bark: consult a health practioner if you are pregnant or nursing
  
• Catnip Leaf and Flower
  
• Chamomile Flowers, Roman
  
• Chaste Tree Berries
  
• Coltsfoot Leaf: do not use during pregnancy or nursing
  
• Comfrey Leaf: do not use during pregnancy or nursing
  
• Dong Quai Root
  
• Elecampane Root: do not use during pregancy or nursing
  
• Feverfew
  
• Gentian Root: consult a health practitioner if you are pregnant or nursing
  
• Goldenseal
  
• Horehound
  
• Hyssop Herb
  
• Juniper Berries
  
• Kola Nuts
  
• Lemongrass
  
• Licorice Root: do not use during pregancy or nursing
  
• Lovage Root
  
• Lungwort Leaf:do not use during pregancy or nursing
  
• Lycii Berries: Gou Qi Zi
  
• Motherwort Herb
  
• Mugwort
  
• Myrrh
  
• Oregon Grape Root
  
• Osha Root
  
• Parsley Root
  
• Pennyroyal, English Royal
  
• Prickly Ash Bark
  
• Queen of the Meadow: do not use during pregancy or nursing
  
• Red CLover Blossoms
  
• Rhubarb Root: consult a health practitioner if you are pregnant or nursing
  
• Safflower Petals
  
• Senna Leaf: consult a health practitioner if you are pregnant or nursing
  
• Senna Pods: consult a health practitioner if you are pregnant or nursing
  
• Shepherd's Purse
  
• Spikenard Root
  
• Uva Ursi Leaf
  
• Vervian Herb
  
• Wormwood Herb:do not use during pregancy or nursing
  
• Yarrow Flowers