Iodine-induced Thyrotoxicosis After Ingestion of Kelp-containing Tea

Overview

Journal J Gen Intern Med

Publisher Springer

Specialty General Medicine

Date 2006 Jul 1

PMID 16808731

Citations 14

Authors

Karsten Mussig

Claus Thamer

Roland Bares

Hans-Peter Lipp

Hans-Ulrich Haring

Baptist Gallwitz

Affiliations

Soon will be listed here.

Abstract

Complementary medication is en vogue and an increasing number of patients consume herbal medicine without reporting their use to physicians. We report a case of iodine-induced hyperthyroidism due to the ingestion of a kelp-containing tea. A 39-year-old woman with multinodular goiter presented with typical signs of hyperthyroidism, which was confirmed by endocrine tests. She was not exposed to iodinated radiocontrast media and did not take medications containing iodine, such as amiodarone. However, a detailed medical history revealed that she had been treated for a period of 4 weeks by a Chinese alternative practitioner with a herbal tea containing kelp because of her enlarged thyroid. The consumption of the tea was discontinued and an antithyroid drug therapy was initiated. Physicians should advise patients with underlying thyroid disease to avoid all complementary or alternative medications containing iodine.

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