Can anyone tell me if there is any interaction between Levothyroxine & atorvastatin.
My 76 year old mum had been on Levothyroxine for over 25 years at 75mg and has been fine.
Her cholesterol was high a few years ago and they put her on Atorvastatin. She showed symptoms of her thyroid medication not being right so had tests. Her GP reduced her thyroxine to 25mg which proved too low. It was then moved to 50mg for 3 mths.
The last recent test has shown T4 and TSH as high again so she now has another appointment for the GP to examine her gland.
We don't understand what is going on because if T4 is high surely TSH should be low?
I'm wondering if there is an interaction between the drugs as she was fine before. I have googled it but can't find anything to say there Atorvastatin affects thyroxine dosage.
She also takes warfarin & sotalol for a atrial fibrillation but was on this with thyroxine long before the problems arose.
How important are the statins?
I'd be grateful if anyone can explain it to me.