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As of last week, one of my readers has let me know that the Pfizer brand of Cytomel
(a T3 containing medication) may have gluten as an ingredient, and she believes this has affected her health, leading to an increase in thyroid antibodies, liver antibodies and symptoms. She has asked me to share this important warning with you."I found out yesterday that the Cytomel I have been taking for the past year and a half contains gluten as a filler, when it used to contain corn starch. I spoke with Pfizer and they said it not longer uses corn starch and that there is indeed gluten in the pills. They categorically refused to tell me what they used, but on further research, I believe it is wheat. I have severe gluten sensitivity, and possibly the beginnings of celiac disease, so this is a huge problem. I've developed high liver enzymes since I started Cytomel, believing it was safe. I also have documented liver damage. This is so alarming to me that I'd like Dr. Wentz to help inform others of this terrible danger to those with gluten issues. I am hoping that a compounded T3 and liver support and detox will reverse the issue for me.I believe the Hashimoto’s community has a right to know that Pfizer changed the filler to a gluten one. It is irresponsible and dangerous."
She also added that despite ongoing numerous interventions that brought her thyroid antibodies from 2700+ to the 400’s, her thyroid antibodies have started to increase after starting the Cytomel.
This is very alarming and disappointing news to me, but also lets me know that we have much more work to do in advocating for our own health.
I spoke with a very nice medical information representative who confirmed that the starch in Cytomel can be corn, potato or wheat derived and that Pfizer is not able to verify the source. I informed her about my experience with Hashimoto’s, my advocacy work, social media and email reach, as well as the high percentage of people with co-occurring Hashimoto’s and Celiac disease.....
Alternative gluten-free medications to the Pfizer brand Cytomel include the following generic brands:
- Liothyronine (SigmaPharm)-Per Aurora in the medical information department, this product does not contain gluten, however the mannitol is wheat-derived. The starch is derived from cornstarch. No gluten was detected in the product on testing.
- Liothyronine (Paddock)- (per Cassandra in the medical information department) -all strengths are gluten-free
The most common:
- Synthroid - now gluten-free
- Tirosint- always gluten-free
- Levothyroxine (Mylan)-all strength are certified gluten-free (per Kate in Drug Safety)
- Lannett levothyroxine (Julian)- gluten-free, uses cornstarch
- Levothyroxine (Sandoz)- none of the ingredients are gluten, wheat, rye, or barley derived (per Albert)
To see the other levothyroxine brands/generics and Natural Desiccated products products that are also gluten-free please go to my gluten in medications article.
Natural Desiccated products that are gluten free include:
- WP Thyroid
- Nature-Throid
- Armour
Please note that occasionally the inactive medication ingredients may change, without warning, leading to a gluten-free medication all of a sudden having gluten, or a gluten-containing medication you perhaps wanted to try, being reformulated to become gluten-free.This list is current as of May 2016 and may not be inclusive of every thyroid medication.
I hope that one day there will be a law that ensures all medications containing gluten are labeled and that all pharmaceutical manufacturers will be required to notify pharmacies whenever they change their formulations.
If you felt better gluten-free but then found that you started feeling worse and can’t pinpoint the root cause, check your medications.
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