St. Johns Wort - Hypericum perforatum

St. Johns Wort.jpg
St. Johns Wort.jpg

St. Johns Wort - Hypericum perforatum

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Safety class: 2D - Other specific use restrictions as noted

Interaction class: C - Herbs for which clinically relevant interactions are known to occur

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Contraindications: St. John’s wort should not be used during phototherapy (laser or ultraviolet) (Beattie et al. 2005). 

Other precautions: Avoidance of excessive exposure to sunlight during St. John’s wort use is warranted in fair-skinned persons (Martindale and Reynolds 1996; Weiss and Meuss 2001; Wichtl 2004).