Botanical Index No. 311

Cow Parsnip

heracleum sphondylium

Safety & Contraindications

Not covered. Like many umbellifers, this one is serious phototoxic, the furanocoumarins causing blistering and exfoliation. Avoid sunshine, ultraviolet light, and solaria during administration. Root contains psoralen, under investigation for treatment of psoriasis, leukemia, and AIDS.

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