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A 43-year-old female asked:

My doctor prescribed me lactose free thyroxine due to my intolerance, it seems to irritate my stomach though and i have to take an omeprazole with it?

2 doctor answers5 doctors weighed in
Dr. Leila Hashemi
Internal Medicine 22 years experience
Lactose intolerance: Well, NO, you can take omeprazole with thyroid med as it decreases the efficacy of it.
Dr. David Sneid
Endocrinology 42 years experience
Synthroid (thyroxine) has: such a small amount of lactose in it that I doubt it would irritate your stomach. You could try taking it with some lactase such as Lactaid. Another brand name T4 replacement, Tirosint, doesn't contain lactose, at least as far as I'm aware.

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