-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 Association’s Botanical Safety Handbook. Boca Raton, FL: The CRC Press.

Wichtl M (ed.). 1994. Herbal Drugs and Phytopharmaceuticals, Boca Raton: CRC Press.

10.

De Smet PAGM et al. (eds.). 1993. Adverse Effects of Herbal Drugs 2, Berlin: Springer-Verlag

McGuffin, Michael, ed. 1997. American Herbal Products Association’s Botanical Safety Handbook. Boca Raton, FL: The CRC Press.

Wichtl M (ed.). 1994. Herbal Drugs and Phytopharmaceuticals, Boca Raton: CRC Press.

ticals, Boca Raton: CRC Press.