Hi,
Synthroid contains
levothyroxine that is used in the treatment of
hypothyroidism which may be resulted from naturally or injury to the thyroid gland due to radiation or surgery. Due to therapeutic over dosage, side effects associated with Synthroid are adverse effects of
hyperthyroidism such as
excessive sweating, unusual tiredness and weakness, heat intolerance, fatigue, fever, headache, diarrhea, increased appetite, weight loss etc.
In case of hyperthyroidism,
thyroid stimulating hormone (TSH) will be decreased or thyroid hormones like T3, T4 will be increased. So, you should undergo thyroid function test and consult your doctor for dosage adjustment as well as further evaluation.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Zubayer Alam, General And Family Physician