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Thyroid Cancer, Nodules & Hyperthyroidism (Expert Forum)
Synthroid vs. Generic
Answered by
Mark Lupo, M.D. - Thyroid Nodules, Thyroid Cancer, hyperthyroidism, hypothyroidism, Thyroid Ultrasound
Thyroid & Endocrine Center of Florida
Sarasota - FL
Questions in the Thyroid forum are answered by Mark Lupo, MD. Topics covered include Goiter, Graves Disease, Hyperthyroid, Parathyroid/Calcium Problems, Thyroid Cancer, Thyroid Nodules/Cysts, Thyroiditis, Thyroid & Pregnancy, Thyroid Stimulating Hormone (TSH), Thyroid Tests, and Thyroid Surgery.
Synthroid vs. Generic
by Kristin6, Aug 19, 2007 01:03PM
I was diagnosed in May '05 with Hashimotos. I began taking generic Levothyroxine and was doing really well on it. As far as I know, I had always taken the Sandoz brand at .75mcg. In October, when I could no longer consistently find the Sandoz brand and found that switching manufacturers really messed me up, my Dr. switched me to strictly Synthroid. By February my TSH was back to 5.9. I switched to .88mg and my TSH came to 2.5 but I still felt terrible.
I've been on .100 for 3 weeks now. I supose my TSH is still improving, but I'm lathargic, fatigued, not sleeping, and losing my hair again.
I remember feeling tons better after just 2 weeks on the Sandoz pill. Why does the Synthroid seem to take so long to adjust my levels? And why do I still feel so sick when my TSH is looking better?
I've been on .100 for 3 weeks now. I supose my TSH is still improving, but I'm lathargic, fatigued, not sleeping, and losing my hair again.
I remember feeling tons better after just 2 weeks on the Sandoz pill. Why does the Synthroid seem to take so long to adjust my levels? And why do I still feel so sick when my TSH is looking better?
Doctor's Answer
by Mark Lupo, M.D., Aug 21, 2007 06:08AM
, Aug 21, 2007 06:08AM
TSH of 2.5 is just a little high -- target is around 1.0
Consistent source of thyroid medication is important -- all these meds have the same levothyroxine ingredient but are not necessarily the same in terms of effect on body -- so re-titration is needed when you make a change. Now the key is to consistently get the same source each time.
Consistent source of thyroid medication is important -- all these meds have the same levothyroxine ingredient but are not necessarily the same in terms of effect on body -- so re-titration is needed when you make a change. Now the key is to consistently get the same source each time.
Your TSH is still very high at 2.5, though improving