Comfrey has been cultivated as a green vegetable and has been used as an herbal medicine for more than 2,000 years. Comfrey's original name, knitbone, derives from the external use of poultices of its leaves and roots to heal burns, sprains, swelling, and bruises. In Western Europe, comfrey has been used topically for treating inflammatory disorders such as arthritis, gout, and thrombophlebitis, and internally for treating diarrhea. Comfrey has been claimed to heal gastric ulcers and hemorrhoids, and to suppress bronchial congestion and inflammation. Commercial comfrey sale and distribution is restricted in Germany and Canada because of its substantial toxicity.
Therapeutic use of comfrey is limited because of its toxicity. A limited number of clinical trials show short-term efficacy of topically applied, alkaloid-free comfrey preparations in skin abrasions and inflammatory conditions. Although not examined in clinical trials, comfrey may possess antifungal and anticancer activity.
Comfrey is not recommended for internal use because of the liver damage caused by its pyrrolizidine alkaloids. Patients with hypersensitivity or allergic reactions to the plant should also avoid external use. Definitely do not use during pregnancy or nursing, with infants, and if you have liver or kidney disease.
4-7 business days
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Jul 21, 2020
Quick shipping perfect shopping experience, I can't wait to plant a bed of comfrey for my garden next spring. Thank you!
Jul 18, 2020