Taking eugenol (levothyroxine sodium) for thyroid cancer raises T4 when taken in sufficient quantities, which has a suppressive effect on TSH, which may be elevated when taken in smaller quantities.
Levothyroxine is taken to supplement a possible thyroxine deficiency, and T4 (thyroxine) is naturally elevated; the two are the same substance.
Elevated levels of TSH, which is a thyrotropin, can promote hyperplasia and enlargement of thyroid cancer tissue, increasing the risk of metastasis and spread of the cancerous tissue.
Thyroxine has a negative feedback inhibitory effect on TSH, inhibiting the expression of thyroid hormone receptors on the cell surface of thyroid and cancerous tissues and reducing their levels to inhibit the growth of tumor cells, thus inhibiting the progression of thyroid cancer.
When too much eugenol is taken, TSH will be lower than normal, and when too little eugenol is taken, TSH will be higher than normal, resulting in substandard TSH.
Pay attention to a light diet, eat more fresh fruits and vegetables, and eat less spicy and stimulating food.