Adverse events are generally caused by incorrect dosing. Long-term suppression of TSH values below normal values frequently cause cardiac side effects and contribute to decreases in bone mineral density (low TSH levels are also well known to contribute to osteoporosis). Too high a dose of<unk>  causes hyperthyroidism. Overdose can result in heart palpitations, abdominal pain, nausea, anxiousness, confusion, agitation, insomnia, weight loss, and increased appetite. Allergic reactions to the drug are characterized by symptoms such as difficulty breathing, shortness of breath, or swelling of the face and tongue. Acute overdose may cause fever, hypoglycemia, heart failure, coma, and unrecognized adrenal insufficiency. Acute massive overdose may be life-threatening; treatment should be symptomatic and supportive. Massive overdose can be associated with increased sympathetic activity, thus may require treatment with beta-blockers. The effects of overdosing appear 6 hours to 11 days after ingestion.
Levothyroxine
Cortisone acetate
Cortisone
Fludrocortisone
Calcipotriol
Potassium iodide
Liothyronine
Hypophysectomy