Suicide attempt of an overt hypothyroid patient with levothyroxine: A case report

Rationale: Levothyroxine is the most commonly used agent in thyroid hormone replacement therapy. Although there are many hypothyroid patients who use levothyroxine as a treatment, high level of thyroid stimulating hormone is found in a limited number of levothyroxine overdose cases worldwide.Patient concern: A 34-year-old male patient taking 4.5 mg levothyroxine for suicide.Diagnosis: Overdose of levothyroxine.Interventions: The patient was admitted to the intensive care unit for follow-up treatment. Cardiac rithym and vital parameters of patient were closely monitored.Outcomes: The patient discharged without any life-threatening complications.Lessons: Patient with initial high thyroid stimulating hormone levels may not be in hyperthyroidism crisis by levothyroxine poisoning.