Levothyroxine iodine
Common Questions and Answers about Levothyroxine iodine
synthroid
I think there is some confusion about iodine in Levo. Levothyroxine doesn't contain "added" iodine. The T4 in Levo is a molecule of tyrosine (an amino acid - the T) with 4 iodine atoms attached (the 4). When already taking the 200 mcg of Levo, I can't see why you need the iodine supplement.
What symptoms do you have? What are your thyroid related test results and reference ranges shown on the lab report?
My TSH level is 99.97. The doctor prescribed .150 of Levothyroxine. Do you think this is too high to begin with? I have been on the medicine for 10 days. I am feeling a little jittery and my BP seems to be going up a little. Thank you.
but I notice Thyroid Px has high levels of iodine. That is good for someone with a known iodine deficiency, but most people with thyroid problems have an autoimmune condition that's causing it. Taking iodine supplements can actually irritate and worsen the thyroid condition. Did your doctor explain anything like that to you or did the naturopath do any thyroid blood panels to confirm a specific condition?
Hormone therapy (HRT) for menapause is an independent issue from the thyroid cancer -- it is not problem from thyroid standpoint, but sometimes HRT causes changes in levothyroxine (thyroid medication) doses. You can have iodine now -- we just avoid it around times of I-131 treatment or scanning.
Hi I don't have signs but I'm worried about what the future may hold as it's more likely than not that I will soon be on levothyroxine for hypo.
Thank you for the info. I'll look into it.
I agree with you on the kelp I've read some good stories and bad some of the good ones I have a hard time believing since some are linked to product on sites selling the product :( I'll look into the potassium iodide/iodine.
Your doctor will likely prescribe levothyroxine on very low dose like 12.5 mcg then on follow up will raise the dose in steps like 12.5 mcg + 6.125 mcg etc till your TSH come in lower side of normal range which is around .75 to 1.5
Also you need to test your Vitamin D level and supplement if its not in optimal range.
I have an underactive thyroid after having radioactive iodine over 2 years ago, is there any condition where leveothyroxine should not be taken, as I have gradually become more ill since taking levothyroxine.
I recently had a miscarriage in November from my hypothyroidism that was untreated. I have been on levothyroxine since then. I am currently 5 weeks pregnancy and my dose was bumped up to 100mg, but I was warned about having a high risk pregnancy and high chance of miscarriage and a defect baby If I went full term. Since then I haven't had any symptoms. Has this happened to anyone else? How was your outcome? I am so scared. My level was first 7 then a week later 31.
I have been hyperthyroid ever since, now I have had a radioactive iodine for my nodules and goiter, now I am a little hypothyroid and the doctors have not given any thyroid meds. I have been feeling terrible forever. My recent labs were 2.18 for TSH and .67 for my T4. Help me if you can. What should I do now?? Feeling the symptoms of both the hypo and hyper from time to time.
No, there is no risk as you are on levothyroxine and the primary reason that we need iodine as humans is for thyroid function.
I had my whole thyroid removed 2 yrs ago. The levothyroxine wasn't absorbing so recently they put me on levothyroxine and cytomel as a booster for 9 days. My vitamin D levels.were very low. Now out of nowhere, I am getting a rash all around my neck. So.etimes very light sometimes not visible either. But the skin feels rough feeling. So I'm thinking it must be a thyroid issue or lack of vitamin D. I'm starting vitamin D today that the dr prescribed to be. We will see what happens.
This is a members' forum. We are not doctors, but fellow patients. Sometimes, questions posted to the doctors' forum are referred here if there are too many questions there.
Please repost the previous labs you refer to.
High FT3 can cause heart palps and flutters. Iodine does not affect the conversion of T4 to T3. Once T4 is produced by the thyroid, iodine is no longer needed. In fact, when T4 is converted to T3, a molecule of iodine is actually stripped off of it.
I had a Radioactive Iodine treatment 19 years ago which killed my thyroid, and I had been taking Levothyroxine ever since, until 9/09 when I had kidney stones and a bad kidney infection and was in the hospital in intensive care for a week and off all medication. Since then, my T3 and T4 levels have been all messed up and my Dr. has been trying every combination to get me balanced since then, but has not yet got my system right yet.
left parathroyidectomy, off synthroid to prep for iodine 131 therapy because of cancerous nodule found in thyroid. Tsh has gone from 14 to 66 in a week. Having leg & foot cramps continuously. Is this level of tsh dangerous- will be a week before I will see doctor about the iodine therapy?
So the following week they took out the other side and all the tissue they could find.They started her on 150 levothyroxine. The encocronologist called yesterday and said her levels were high and they needed to be low/normal. Will this delay her radio iodine? Does this mean her chances for reocurence are higher?
When they took out the other side of her thyroid they found a small cancer but it was in her vessels. Should the radioiodine therapy take care of all that?
last jan 12, 2007, i undergo I-131 treatment for hyperthyrodism or in other words radioactive iodine to treat my grave desease. my weight then was between 95 to 105lbs. at present, i am now 126 lbs. and getting bigger because i am now hypothyroidism and i am taking levothyroxine 75 mcg everyday. the last time i had my tsh was at .40 taken last jan 15, 2009.
Although Iodine is contra-indicated for those of us with Hashimoto's, having the CT scan with contrast (iodine) isn't going to hurt because it will leave your body relatively soon.
You should talk to the imaging facility or your doctor regarding the barium - do you take that on a regular basis? If so, why?
You should also ask about taking your medication prior to the scan or if you need to be off it for a while.
In April of 07 i had to take a radio active iodine capsule, which my DR. says has killed my thyroid. Since Jan. of 08 i have been taking cytomel 50mcg and levothyroxine 125mcg every morning. I have gained 50lbs and my thyroid levels are: TSH 0.00, T3U 33, T4 7.6, FTI 2.5 and i am always tired and it doesn't matter how much i watch what i eat or exercise i can not lose weight WHY??? What am i doing wrong? Please help me lose the weight..Give me some ideas.
Have not been able to stabilize symptoms in last 2 yrs, despite dose changes of Naturethroid, and addition of levothyroxine. Serum iodine somewhat low, using iodine supplement in low dose. Currently additionally troubled with palpitations over the last several months, coupled with increased anxiety...new PCP wants to increase Sertraline from 100 to 150 mg for the anxiety... literature suggests that Sertraline interferes with thyroid Meds.
I saw my endo for the first time July 14th. Starting July 15th I was taken off levothyroxine in preparation for radioactive iodine for the cancer, my calcium dosage was cut from 3000 to 1000 per day and I started 50,000iu of vitamin d.
Long story short, I was left off my levothyroxine for 6 weeks and by the time I went to icu my T4 Free was at 0.2 and my TSH was 208. They gave me a toxic dose of Synthroid...which I later found out is the same thing as levothyroxine....
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