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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes High Blood Pressure And Palpitations While Being On Levothyroxine?

I am on Levathyroxine, and have now had a second 3 day spell of very high blood pressure, palpitations, irritability and shortness of breath. Previously I ended up visiting the emergency dept. at hospital, who said my dose had been increased too rapidly. It stabilised, and I increased the dose (over 3 months) gradually to 0.50mg, then latterly to 0.75mg. After having the same (albeit not as severe) symptoms I reduced back down to 0.50mg, then later this week I continued to feel unwell, so this weekend I've reduced to 0.25mg. After 2 days of high blood pressure (155/109), I feel ok now. But I'm worried about the damage this is doing to my heart/increased risk of stroke? Been to various doctors and they are not listening?
Wed, 29 Jun 2016
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General & Family Physician,  's  Response
i can understand your worries. as your blood pressure was high only for few days , it is less likely to having significant damage to your heart or brain. your high blood presssure is likely due to inappropriate thyroxin dose . so consult your family physician or endocrinologist. they will arange TSH /T3/T4 for you. according to results they will decide appopriate thyroxin dose for you . when you taking that appopriate thyroxin dose your blood presssure will come down to normal values.
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What Causes High Blood Pressure And Palpitations While Being On Levothyroxine?

i can understand your worries. as your blood pressure was high only for few days , it is less likely to having significant damage to your heart or brain. your high blood presssure is likely due to inappropriate thyroxin dose . so consult your family physician or endocrinologist. they will arange TSH /T3/T4 for you. according to results they will decide appopriate thyroxin dose for you . when you taking that appopriate thyroxin dose your blood presssure will come down to normal values.