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Nadim Al-Mubarak
Nadim Al-Mubarak, Doctor
Category: Medical
Satisfied Customers: 379
Experience:  MD at University Hospital Case Medical Center
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15years+ hyper-thyroid, periodic stress latter years

Customer Question

15years+ hyper-thyroid, periodic stress latter years producing AT Fib, being treated with 80mg/d. Sotalol. 12mts ago radioactive iodine stopped hyper-thryoid. Recent 3mth needed to take, 5mg bi-daily Thryoxine. AT Fib per se has not been evident. Am 87yrs. My ? - May be affected by Satalol - seem to be excessively tired even with minimal activity, always cold (looking for heater in 18+deg!?)
Submitted: 1 year ago.
Category: Medical
Expert:  Nadim Al-Mubarak replied 1 year ago.


  • Sotalol belongs to a class of medications called "Beta blockers", and could be associated with fatigue but not the cold feeling.
  • The cold feeling is typical of low thyroid and it is possible that your thyroxine level is inadequate, and therefore, this will need to be re-checked and if indeed low, the dose needs to be readjusted
  • You are on a small dose of Sotalol ( 80-mg once daily). It is highly unlikely that this dose is what's keeping the Atrial Fib under control. Sotalol can most likely be stopped or replaced with another medication that does not cause fatigue. BUT, you need to discuss this with your heart doctor

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Expert:  Nadim Al-Mubarak replied 1 year ago.

Let me know if you have any more questions