Abstract Title:

Lycopus europaeus (Gypsywort): effects on the thyroidal parameters and symptoms associated with thyroid function.

Abstract Source:

N Engl J Med. 1979 Jun 28;300(26):1445-8. PMID: 18083505

Abstract Author(s):

A-M Beer, K R Wiebelitz, H Schmidt-Gayk


The aim of the prospective two-armed open study was to examine the effect of Lycopi europaei herba on thyroid function and on associated symptoms during a 3-month follow-up phase. The study population consisted of patients with a basal TSH<1.0 mU/l and hyperthyroidism-associated symptoms. For the first time, the T3/T4 excretion in 24h urine was measured as a primary objective parameter. As secondary parameters, further hormones, the general condition and the symptoms associated with hyperthyroidism were registered. The urinary T4 excretion was significantly increased in Lycopus europaeus-treated patients (p=0.032). It is supposed that renal mechanisms cause the increased T4 excretion either by a modification within the glomeruli or by impaired reabsorption. Symptoms being specific to the thyroid gland were diminished, as e.g. the increased heart rate in the morning. The Lycopus europaeus preparation showed a good tolerance. These findings confirm positive effects of Lycopus europaeus in slight forms of hyperthyroidism.

Study Type : Human Study
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