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A member asked:

Can someone be sensitive to different dosages of synthroid (thyroxine)? from 75 to 88. in my right range @ 88 and feel great, but feel pounding heart and anxiety

A doctor has provided 1 answer

Discuss this with: Your endocrinologist, see if your thyroid meds can be adjusted.

Dr Altman and another doctor agreed

Answered 10/4/2016

5.4k views

Thank

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Taking Synthroid (thyroxine) 125 and felt a sudden adrenaline rush on my heart. Should i be worried?

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Diagnosed with graves. On l-thyroxine, but still have all symptoms. Main symptom is heart palpitations. What could this be? See med notes, please.

3 doctors weighed in across 2 answers

A member asked:

My father just passed away with third degree heart block. Is this hereditary? Just has calcium score 0. No meds; Synthroid (thyroxine) only - gland removed.

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