Originally posted by rennigade
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Originally posted by Like2Plan
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As for thyroid medicine, that is one of the very rare cases where brand name might possibly make a difference because the drug has what is called a narrow therapeutic range. Synthroid, the main brand, comes in 11 or 12 dosages and they are measured in micrograms. There is less than a 10% range between some of the doses available so it is possible that if the pill you get this month is off by several percentage points from the one you got last month, it would be almost the same as your doctor changing your dosage.
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