Propranolol & thyroid medication

[Guest guest]

I've been on propranolol 80mgs for about 25 years or more for Arrythmia due to

HCM (hypertrophic cardiomyopathy). Does propranolol interfere with the actual

conversion of T4 to T3 or does it interfere with T3 uptake at cell level and how

much does it interfere? If it interferes with conversion from T4 to T3 then it

would appear obvious that taking some T3 might improve matters but if it

interferes at cell uptake level then I presume I would have to take a higher

dose of thyroid medication than another person who is identical to me. I'm

trying to work out the best medication for my Hashimoto's to get the best

results and at present am on 2.5gr NDT and 25mcg T3.

Val

[Guest guest]

Many thanks , so I've got that straight in my head now. Pity I haven't got

my next cardiac appointment for another year almost. I once asked my cardiac

consultant what he thought about beta blockers and interference with thyroid

medication and he completely denied any connection. I didn't insist as I was

probably feeling cowardly that day. I see that atenolol is a selective Beta

Blocker so it does sound more appropriate in my case but I doubt if my GP would

change my Propranolol to Atenolol but I'll try asking next time I go.

>

> Hi Val,

>

> It stops conversion. So I would have thought T3 was the answer.

> Have a look at this article

> http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1714646/?page=1

> Atenelol might be better for you than propanolol.

>

> x

[Ed]