I have been taking Mercurypharma brand levo for many years (a 50mcg and a 25mcg daily) with no issues at all. A few months ago my pharmacist switched supplier to Teva and Wockhardt and I immediately started to feel unwell when taking them. I got bloated, gassy, had diarrhoea, constipation and stomach cramps and eventually got very bad acid reflux that made my chest and throat hurt (it feels like I'm being strangled). My trousers got tighter even though I lost weight. I also felt foggy and mentally not as sharp.
The next time I got a repeat I was given Mercurypharma again and the symptoms went away completely but I've now been issued the other two brands again and the symptoms have all come back. I'm following a very strict diet as I have a very serious food intolerance that made me desperately sick for years (I have low stomach acid, autoimmune atrophic gastritis and low B12). The doctors still aren't sure what food is causing it so I'm on a very basic and consistent diet and have been all year so the only factor that has changed is my levo.
Looking at thyroiduk.org.uk/tuk/treatm... I can see there is some difference in the ingredients:
Mercurypharma contains Ahydrous levothyroxin sodium
, Sodium citrate, Lactose, Maize starch, Acacia powder, Magnesium Stearate, Purified water
Teva (new formulation) contains: Levothyroxin sodium
, maize starch, mannitol (E421), microcrystalline cellulose, sodium citrate, acacia, magnesium stearate
Wockhardt contains: Levothyroxin sodium, Lactose, Sucrose (fine powder), Maize Starch, Magnesium Stearate
I don't know what to do. An ingredient in one of the new versions is disagreeing with me and I can't go another 2 months until my next repeat as I feel really quite sick. Should I stop taking it and wait until I see a doctor? It's a holiday weekend and I may not get an appointment for some time. My pharmacy is also shut for 3 days.