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THYREX [Specialities]

THYREX is a dietary supplement which helps improve the function of the thyroid gland in a completely natural way. An insufficient functioning of the thyroid gland is one of the primary causes of quality-of-life problems like energy problems, mental imbalance and obesity.
natural energy THYREX
Prijs : € 60 Tabletten
(CNK: 3456-183) at your pharmacist

THYREX is a dietary supplement which helps improve the function of the thyroid gland in a completely natural way. THYREX can be used for the treatment of subclinical hypothyroidism in monotherapy as well as for the treatment of overt hypothyroidism in combination with replacement therapy.

Dysfunction of the thyroid gland is one of the main causes of quality of life issues, such as lack of energy, mental imbalance and obesity. Mild forms of thyroid dysfunction can be treated easily with the help of natural stimulation and do not necessarily require replacement therapy for optimal treatment. In severe forms of thyroid dysfunction a combination of replacement therapy and stimulation is the
best guarantee for an optimal quality of life.

THYREX is a dietary supplement that supports the thyroid optimally in a completely natural way. Thyrex consists of a combination of L-Tyrosine and Iodine, the basic ingredients of our thyroid hormones, supplemented with Withania Somnifera, an adaptogen which has been scientifically proven to stimulate thyroid function, as well as Selenium, Zinc and Vitamin B1, which are the three main cofactors required
for optimal thyroid hormone replacement therapy.


Instruction for use
Adults and children over 12 years: 1-2 tablets per day, right before mealtime. 

Do not exceed the recommended daily dose.
Keep out of reach of young children.
Nutritional supplements should not replace a varied and balanced diet and a healthy lifestyle.
This product is not suitable for children and pregnant or lactating women. 

Check with simultaneous intake of medicines.
No long-term use without professional advice.

The intake should be limited to a few weeks / months.

NUT_PL_AS 1429/35


Range of usage


  • Obesity.

Ingredients per tablet
Fillers (Microcrystalline cellulose, Dicalcium phosphate, Silica dioxide), Withania somnifera (L.) Dunal (Ashwagandha) Extract 300mg, L-Tyrosine 300mg, Thickener (Vernet sodium carboxymethylcellulose), Gloss agents (Hydroxypropylcellulose, Hydroxypropylmethylcellulose, Talc, Beeswax, Carnauba wax), Anticlotant (Magnesium stearate ), Zinc (Zinc citrate) 11.23mg (112.30% RI), Dye (Titanium dioxide), Vitamin B1 (Thiamine HCL) 1.57mg (142.73% RI), Wetting agent (Polysorbate 80), Iodine (Potassium iodide) 112mcg (74.67% RI), Seleen (L-selenomethionine) 50mcg (90.91% RI)
RI: Referenceintake
Singh et   al. Functional characterization of a  flavonoid glycosyltransferase gene from Withania somnifera (Ashwaganda). Appl Biochem Biotech-nol. 2013 Jun;170(3):729-41. doi: 10.1007/s12010-013-0230-2.

Mehta AK, Binkley P, Gandhi SS, Ticku MK. Pharmacological effects of Withania somnifera root extract on GABA receptor complex. Indian J Med Res (1991 Aug) 94:312-5

de Benoist B, McLean E, Andersson M, Rogers L. Iodine deficiency in 2007: global progress since 2003. Food Nutr Bull. 2008;29(3):195-202.

Teng W, Shan Z, Teng X, Guan H, Li Y, Teng D, et al. Effect of iodine intake on thyroid diseases in China. N Engl J Med. 2006 Jun 29;354(26):2783-93.

Kowalsky RJ, Falen, SW. Radiopharmaceuticals in Nuclear Pharmacy and Nuclear Medicine. 2nd ed. Washington DC: American Pharmacists Association; 2004
Wurtman RJ, Larin F, Mostafapour S, Fernstrom JD. Brain catechol synthesis: control by brain tyrosine concentration. Science 1974;185:183-184. PMID 4276197.

Banderet LE, Lieberman HR. Treatment with tyrosine, a neurotransmitter precursor, reduces environmental stress in humans. Brain Res Bull 22(4) (1989): 759-62.

Morris JG, Yu S, Rogers QR. Red hair in black cats is reversed by addition of tyrosine to the diet. J. Nutr [Internet]. 2002 Jun.;132(6 Suppl 2):1646S–8S

Bastian TW, Prohaska JR, Georgieff MK, Anderson GW. Perinatal iron and copper deficiencies alter neonatal rat circulating and brain thyroid hormone concentrations. Endocrinology. 2010 Aug;151(8):4055-65.

Bolk N, Visser TJ, Nijman J, et al. Effects of evening vs morning levothyroxine intake: a randomized double-blind crossover trial. Arch Intern Med. 2010 Dec 13;170(22):1996-2003.

Campbell NR, Hasinoff BB, Stalts H, et al. Ferrous sulfate reduces thyroxine efficacy in patients with hypothyroidism. Ann Intern Med. 1992 Dec 15;117(12):1010-3.

Zimmermann MB, Köhrle J. The impact of iron and selenium deficiencies on iodine and thyroid metabolism: biochemistry and relevance to public health. Thyroid. 2002 Oct;12(10):867-78.

Clin Endocrinol (Oxf). 2013 Feb;78(2):155-64. doi: 10.1111/cen.12066. Selenium and the thyroid gland: more good news for clinicians.Drutel A1, Archambeaud F, Caron P.
Mazokopakis EE, Chatzipavlidou V. Hashimoto's thyroiditis and the role of selenium. Current concepts. Hell J Nucl Med. 2007 Jan-Apr;10(1):6-8.

J Altern Complement Med. 2014 Mar;20(3):208-11. doi: 10.1089/acm.2012.0612. Epub 2013 Sep 25. Thiamine and Hashimoto's thyroiditis: a report of three cases. Costantini A1, Pala MI.

Function and mechanism of zinc metalloenzymes. McCall KA, Huang C, Fierke CA. J Nutr. 2000 ay;130(5S suppl):1437S-46S.

Kralik A, et al. Influence of zinc and selenium deficiency on parameters relating to thyroid hormone metabolism. Hormone Metabolism Res 1996;28( 5)223-6.

Biol Trace Elem Res. 1990 Jan;24(1):83-9. Zinc acutely and temporarily inhibits adrenal cortisol secretion in humans. A preliminary report. Brandão-Neto J1, de Mendonça BB, Shuhama T, Marchini JS, Pimenta WP, Tornero MT.
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