-IBIS-1.5.0-
rx
herb
Fucus vesiculosus (Bladderwrack)
botanicals
definition
botanical name(s): Fucus vesiculosus
synonyms: bladderwrack, seawrack, common seawrack, cut weed, sea kelp, kelpware, black tang, tang, varech vesiculeux, rockrack
part(s) used: whole plant
qualities:
affinities:
actions:
dosage:
» powder: 1 - 2 g
» tincture: 0.5 - 15 ml.
therapy: hypothyroidism
AHPA Botanical Safety Rating: 2d
toxicity: 0
» contraindicated in excess thyroid activity due to high iodine content (Wichtl, De Smet)
» contraindicated in partial thyroid removal or Hashimoto's thyroiditis; can induce myxedema by increasing interthyroidal concentrations of iodide which blocks thyroxin formation (Anon.)
» long-term therapeutic use not recommended (McGuffin)
constituents:
footnotes
anon. 1975. Kelp diets can produce myxedema in iodide-sensitive individuals. JAMA, 233:9-10.
De Smet PAGM et al. (eds.). 1993. Adverse Effects of Herbal Drugs 2, Berlin: Springer-Verlag
McGuffin, Michael, ed. 1997. American Herbal Products Associations Botanical Safety Handbook. Boca Raton, FL: The CRC Press.
Wichtl M (ed.). 1994. Herbal Drugs and Phytopharmaceuticals, Boca Raton: CRC Press.