Between 2002 and 2012 Abbott Labs continued to make Synthroid imprinted "FLINT". I need the list of fillers in the pills, Abbott refuses to cooperate, and I had a serious adverse side effect
According to an archived page containing prescribing information for Synthroid with the Flint imprints (www.vidyya.com/archives/1112_4.htm) The color additive for the 137mcg tablet is not listed, but as it was turquoise, it would be reasonable to assume it was FD&C Blue No. 1 or FD&C Blue No. 2.
Inactive Ingredients (SYNTHROID Tablets): acacia, confectioner's sugar (contains corn starch), lactose, magnesium stearate, povidone, talc.
The following are the color additives by tablet strength:
Strength Color Additive(s)
25 FD&C Yellow No. 6
75 FD&C Red No. 40
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 & 30
125 FD&C Yellow No. 6, FD&C Red No. 40, FD&C Blue No. 1
150 FD&C Blue No. 2
175 FD&C Blue No. 1, D&C Red No. 27 & 30
200 FD&C Red No. 40
300 D&C Yellow No. 10, FD&C Yellow No. 6, FD&C Blue No. 1
The current Synthroid formulation is exactly the same, with FD&C Blue No. 1 as the color additive.
Each turquoise, round, colour-coded, scored tablet, debossed with "SYNTHROID" on one side and potency on the other side contains levothyroxine sodium, USP 137 µg. Nonmedicinal ingredients: acacia, confectioner's sugar, FD&C Blue No. 1, lactose, magnesium stearate, povidone, and talc.
Hope this helps.
- Synthroid Information for Consumers
- Synthroid Information for Healthcare Professionals (includes dosage details)
- Side Effects of Synthroid (detailed)
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