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A 65-year-old woman developed hypothyroidism leading to a syncopal episode during treatment with levothyroxine sodium and orlistat.
The woman had a history of hypothyroidism, obesity and hypertension. She experienced a syncopal episode and was taken to an emergency room. She had sinus bradycardia and a new first-degree atrioventricular (AV) block. She had free thyroxine (T4) and TSH levels...