Given the number of members who are intolerant to Teva levothyroxine, this video might be of some interest.
Many suspect it is the mannitol content of Teva levothyroxine that lies behind the intolerance. After all, there were also many complaints around the world as Merck have slowly move from lactose to mannitol in their levothyroxine.
And certainly sorbitol is well-known to cause problems.
As usual, this link is expressly for its relevant information and is not an endorsement of any products mentioned or promoted.
Sugar Alcohols Ruined My Health: Learn from My Mistakes
Sabine Hossenfelder
I was told that I have irritable bowel syndrome. But I then learned by sheer coincidence that most of my symptoms were instead caused by food additives collectively known as "sugar alcohols". Since I have cut sugar alcohols out of my diet, my symptoms have almost entirely disappeared. If you have irritable bowel syndrome (or have been told you have it), I suggest you try cutting out sugar alcohols. You will know within two days or so whether that was the cause of the problem.
A list of sugar alcohols including their classification numbers in Europe is:
Sorbitol (E 420)
Mannitol (E 421)
Isomalt (E 954)
Maltitol and Maltitol Sirup (E 965)
Lactitol (E 966)
Maltitol and Maltitol Sirup (E 965)
Xylitol (E 967)
Erythritol (E 967)
Hydrogenated glucose syrup, hydrogenated starch hydrolysates and polyglycitol syrup (all the same thing) is a mixture of sugar alcohols -- avoid!
Lycasin is a trade name for hydrogenated glucose syrup.
I would also recommend that you generally stay away from anything that contains malt and products derived from malt, such as barley malt extract.
Some derived chemicals are:
Polyoxyethylene sorbitan monolaurate (E 432)
Polyoxyethylene sorbitan monooleate (E 433)
Polyoxyethylene sorbitan monopalmitate (E 434)
Polyoxyethylene sorbitan monostearate (E 435)
Polyoxyethylene sorbitan tristearate (E436)
Sorbitan monostearate (E 491)
Sorbitan tristearate (E 492)
Sorbitan monolaurate (E 493)
Sorbitan monooleate (E 494)
Sorbitan monopalmitate (E 495(
Some fruits and vegetables contain high amounts sorbitol and/or maltitol. An internet search will tell you.