hypericism


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Noun1.hypericism - a severe dermatitis of herbivorous domestic animals attributable to photosensitivity from eating Saint John's wort
dermatitis - inflammation of the skin; skin becomes itchy and may develop blisters
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The more serious side effect of severe phototoxicity is contentious and unlikely, with the author asserting that no hypericism has been reported in grazing animals, while the two reported cases only imbibed a very low dose of 240 mg and 100 mg of HP extract per day.
However, severe phototoxic reactions such as the hypericism seen in grazing animals have never been reported.