I found this on the manufactures website. Keep in mind its translated by google. Could they actually be 40mg?
【Common name】 thyroid tablets
[English name] Thyroid Tablets
Ingredient main ingredients of this product are: the Department to take pigs, cattle, sheep and other animals for food thyroid body, remove the connective tissue and fat, minced, dehydrated, defatted, the temperature below 60 ℃ in the dry, small study made
[Character] This product is sugar-coated tablets, sugar-coated post was removed yellow.
[Role type]
Pharmacological effects of thyroid hormone drug product. This product is the main component of thyroid hormones, including thyroxine (T4) and tri-triiodothyronine (T3) two kinds. Can promote catabolism (l thermogenesis) and anabolic effect on the body's normal metabolism and growth and development have a major impact, the development of central nervous system of infants is important. The basic role of thyroid hormone induction of new protein synthesis, including special enzymes, regulate protein, carbohydrate and fat of the three substances, as well as water, salt and vitamin metabolism. Because thyroid hormone-induced membrane Na +-K + pump synthesis and enhance its vitality, and energy metabolism increased. Thyroid hormones (mainly T3) and nuclear-specific receptors, which conformational changes occur, formation of dimer, activated receptors on the specific sequence of DNA, the combination of thyroid hormone response element, thereby regulating gene (thyroid hormone target gene) transcription and expression, the promotion of new proteins (mostly enzymes) synthesis.
[Pharmacokinetics
Indications for the various causes of hypothyroidism.
[Usage and dosage] 1 Adult usual dose: oral, began daily 10-20mg, gradually increasing the daily maintenance dose is usually 40-120mg, few patients need daily 160mg. 2 babies and children completely replace: 1 year of age 8-15mg; 1 --- 2-year-old 20-45mg; 2-7 years 45-60mg; 7 over the age of 60-120mg. Starting dose should completely replace the dose of 1 / 3, gradually increase the volume. As the product T3, T4 levels and ratio between the two is not constant, in the treatment should be based on clinical symptoms and T3, T4, TSH examine and adjust the dose.