Discussions that mention synthroid

Thyroid Disorders board

You can find the dyes used in synthroid at [url="http://www.synthroid.com"]www.synthroid.com[/url]

And look under product info.

The 50 mcg doesn't have any dyes.
It could very well be you have an allergy to the dye in question. You could do well possibly by switching to another LT4 which doesn't use dyes. It'd be cheaper. Or you could go with the 2 50's...

Since Synthroid has the rainbow colors to them, it's often the case that many people have a problem with allergies to the dyes - usually the Yellow ones. You are not the first case I've come across in my travels on message forums.

You should note this well and avoid any kind of other drugs or foods that have these dyes in them. Have you ever been on the 88 and if so did you have problems there? I'm trying to think of a way to figure out for you which of the two yellow dyes you have a problem with...

The List of Dyes Used in Synthroid
25 FD&C Yellow No. 6 Aluminum Lake
50 None
75 FD&C Red No. 40, FD&C Blue No. 2
88 FD&C Blue No. 1, FD&C Yellow No. 6, D&C Yellow No. 10
100 D&C Yellow No. 10, FD&C Yellow No. 6
112 D&C Red No. 27, D&C Red No. 30
125 FD&C Yellow No.6, FD&C Red No. 40, FD&C Blue No. 1
137 FD&C Blue No.1
150 FD&C Blue No.2
175 FD&C Blue No.1 D&C Red No. 27, D&C Red No. 30
200 FD&C Red No. 40
300 D&C Yellow No. 10, FD&C Yellow No. 6, FD&C Blue No.1
[quote]Originally posted by AngelaA:
Do you also take T3? If so you can ask to be switched to Nature-throid which was made specifically for those allergic to dyes and to cornstarch. I was always under the impression all synthetic T4 pills contain dyes. I don't know why they insist in color-coding them when so many people are allergic to red & yellow dyes.

Actually Synthroid is the only brand that uses the dyes to a huge extent.
I have taken Armour and it just was not for me. I have tried Cytomel and that was not for me either. So hence I'm back to taking only the Synthroid. Been taking this med since 88 and I'm just now thinking about the possible dyes in them causing problems other then rashes. It seems that in order for anyone to think you may be having a reaction only in the way of a rash. I do think everyones body reacts different. At this point its worth a try. I just talked with my Doc's office and they agreed. I was thrilled!!!!!!!!!!!!!