Hello, 2 months ago I started using a different brand of thyroxine, Mercury Pharma, as Eltroxin is no longer available and my supply of it was all used up. I was given this brand as I was told it is the same as Eltroxin. Since changing I have noticed problems. In the morning after taking it I feel symptoms of being over medicated, sweating, palpitations, anxious but this eases off through the day. My blood pressure has also risen after being stable all the time I was on Eltroxin
It is as though the thyroxine is absorbed all at once in a big uptake which overwhelms my system and then dwindles off as the day goes on. The Eltroxin seemed to be absorbed more steadily throughout the day.
My endocrinologist has lowered my dose and advised me to use a low dose of Propranolol in the morning which has helped but now I am having trouble sleeping and keep waking up every hour or so.
Has anyone else been changed to Mercury Pharma levothyroxine and noticed this effect or is it just me?