title: [Hyperthyroidism during treatment with kelp tablets].
abstract: A 50-year-old healthy woman started daily treatment with six iodine-containing kelp tablets (Kelpasan), containing 200 mg of kelp each, to lose weight; she took no other medication. Within two months she developed clinical and laboratory evidence of hyperthyroidism, which resolved spontaneously following discontinuation of the tablets. A causal relationship between the intake of the kelp preparation and the thyrotoxic episode could not be established beyond all possible doubt, but the clinical picture and clear temporal relationship strongly pointed in this direction.
authors.affiliation: Koninklijke Nederlandse Maatschappij ter bevordering der Pharmacie, Geneesmiddel Informatie Centrum, Gravenhage.
authors.forename: P A
authors.initials: PA
authors.lastname: de Smet
authors.forename: B H
authors.initials: BH
authors.lastname: Stricker
authors.forename: F
authors.initials: F
authors.lastname: Wilderink
authors.forename: W M
authors.initials: WM
authors.lastname: Wiersinga
mesh_terms: D002351:Carrageenan / Q000009:adverse effects*; D005260:Female; D006801:Humans; D006980:Hyperthyroidism / Q000139:chemically induced*; D007455:Iodine / Q000009:adverse effects*; D008875:Middle Aged; D012624:Seaweed
chemical_list: D002351:Carrageenan; D007455:Iodine
vernacular_title: Hyperthyreoïdie tijdens het gebruik van kelptabletten.