SYNTHROID Reviews (LEVOTHYROXINE SODIUM)

Average Rating: 2.6 (900 Ratings)

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 THYROID ANTITHYROID

 Type: Rx Drug

  

SYNTHROID  (LEVOTHYROXINE SODIUM):  Levothyroxine is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Having enough thyroid hormone is important for maintaining normal mental and physical activity. In children, having enough thyroid hormone is important for normal mental and physical development. This medication is also used to treat other types of thyroid disorders (such as certain types of goiters, thyroid cancer). This medication should not be used to treat infertility unless it is caused by low thyroid hormone levels.   FDA Approval Date: 2002-07-24 (Sources: U.S. Centers for Medicare Services, FDA)

  

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Key to Ratings: 1=LOW (I would not recommend taking this medicine.)
5=HIGH (this medicine cured me or helped me a great deal.)

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More on SYNTHROID: Reviews Summary  |  Drug Safety Information

RATING  REASONSIDE EFFECTS FOR SYNTHROIDCOMMENTSSEXAGEDURATION/
DOSAGE
DATE ADDED
 
 1  I'm not, though was prescribed to. I have had diabetes for 20 years and my endo prescribed Synthroid "for goiter", which I did not (and still don't have). I would like to know how many women that have posted here have had to have a hysterectomy after long-term use of this drug. Both my sisters-in-law had been on this since their mid to late teen years and BOTH (in their 30's) have had hysterectomies. Your doctors won't tell you that long-term use will ruin your reproductive system when they prescribe this drug! YOU should ask them if it will ultimately ruin your female reproductive system. F 44
2/17/2008
 5  Hypothyroidism Zero side effects, except feeling great and feeling full after eating. Have lost weight without trying, especially the trouble zone (tummy) which I gained in the 2 years I've complained about symptoms. Told my doc for 2 years I've had problems, treating everything but Thyroid because it never showed in blood work until 2 years later. Hair had been falling out in clumps. Finally, test showed positive. Been on Synthroid for 2 weeks and I feel great! Guess it works for some and not others. I'm on a low dose of .75. F 43 14 days
2/11/2008
 1  Hypothyroidism Heart palpitations - especially at night; hair loss; weight gain; dry skin and acne. Initially, I felt no difference when I started taking Synthroid five months ago. Then, two months into it, I had rapid and irregular heart palpitations and went to the ER. They ran a stress test and checked my cardiac enzymes and everything was normal. Around this time, I also started gaining weight of about 2-3 lbs per month, despite watching my caloric intake, reducing caffeine, and increasing my exercise. About a month ago I noticed my hair seemed thinner and dull. My skin, which is usually clear of acne, now has a bit of it along my jaw line most of the time. For five months, I did not make the connection. Recently, I started wondering about the Synthroid and got online to do some research. I couldn't believe everything I found. Now I'm convinced it's the reason behind all of this!!! I have a follow up visit in two weeks and I'm going to tell my doctor I want off of it. If it works for some people, that's great, but I'm with those who feel like it's poison to the body. F 43 5 months
2/7/2008
 5  Hashimoto's disease/hypothyroid Took a few months and a trip to endocrinologist to get right dose. Found out I have to wait 12 hours after taking synthroid before taking any mineral supplements (calcium, iron, magnesium)or fiber supplements. Before that, I was taking the supplements too close and blocking the synthroid!!!! Also, found out I need to avoid soy-- if I eat it (and it is in a LOT of foods) soy blocks the effectiveness of synthroid It's been a few months since I started synthroid. Dose had to be upped a few times. Went through extreme fatigue, hair loss, and neck and muscle pain before getting to the correct dose which is making a WORLD of difference in how I feel. My sense of smell is returning now, at 75 mcg synthroid. Also, I do not have constant muscle pain. Have been diagnosed with fibromyalgia in past but now on synthroid, that pain is leaving. Also, had major depression but on synthroid that is improving immensely, too. I did not experience these radical improvements until I got on the correct amt of synthroid and stopped taking vitamins/minerals/iron too close to medication. Avoiding soy is making a huge difference also. My new endo is willing to give me Cytomel if this dose synthroid doesn't help me enough. Will be going back in a couple of mo. F 52 8 months
2/2/2008
 5  hypothyroid No side effects whatsoever ! I've been taking this drug for over 15 years and it's doing what it's supposed to do and I don't have any side effects . I am taking .137 mg/day. M 58 15 years
1/27/2008
 5  hypothyroidism I have been taking synthroid (0.1 mg) for at least 10 years. No side affects after the intial several months to regulate the dosage. Dosage has been increased 3 times since the intial dosage. M 67 10 years
1/27/2008
 5  Hypothyroidism None whatsoever F 26 7 months
1/23/2008
 5  Hashimoto's disease (hypothyroid) None. However, I am only 52 and have osteoporosis. Because the dosage of this medicine has to be carefully monitored, there have been periods of time when I have been taking too much synthroid, before I realize it through bloodwork. This may be a contributor to the relatively early appearance of osteoporosis. I was shocked to read that people are taking Armour Thyroid. Are they aware that this medicine is derived from pig's thyroid glands?(it says on the website "porcine" for the source) This is what physicians used to use before synthetic thyroid was invented. Its great downfall is that it is much more difficult to create accurate dosages of the medicine because the amount of thyroxine may vary from animal to animal. I tried this when I was first diagnosed with hypothyroidism in my mid 20s and I felt much better when I switched to synthroid. F 52 26 years
1/18/2008
 1  hashimoto's depression,severe anxiety,panic attacks, severe insomnia, tingling in extremities this drug was so devistating to me, i felt as though i was suffering from extreme mental illness. anxiety,panic attacks, paranoia, insomnia, no libido all were resolved when i switched to armour thyroid. an endocronologist told me all these symptoms were something else. thank god there are a few honest doctors out there, don't be bullied, you know your own body. your doctor should respect your choices F 57 2 years
1/13/2008
 3  Hypothyroidism Even when my level is fine (according to the blood test) I don't feel well. I am exhasted - I sleep 9 hours a night and usually fall asleep during the day too. I am emotionally all over the place (for no apparent reason) and still experience several symptoms of hypothyrodism. I even tried going off the synthroid to try a natural supplement - and over 3 months gained 25 pounds. So I guess the synthroid must have been doing something... F 25 2.5 years
1/11/2008
 5  I developed Hypothyroidism F 51 16 years
1/2/2008
 1  Lithium induced- hypothyroidism I experienced extreme anger and become irritable when I started this medication. I started taking this medication while was taking 75mg of zoloft and 625mg lithium. My doctor thought my anger was induced by the zoloft in combination with the lithium and zoloft, so she took me off zoloft, when that didn't help (it made it worse) we increased my lithium to 900mg. It this point I was on 25mg synthroid, 0mg of zoloft and 900 mg of lithium and I felt more miserable in life than ever before. I was mad all of the time. I was dizzy and light-headed. Finally, I went off the synthroid and reduced Lithium down to 625mg. I've been off synthroid for only two days now and I feel SO much better. Beware of this medication if taking in combination with mood stabilizers- it literally made me a different person. F 29 8 weeks
1/1/2008
 1  hypo On Synthroid my hair started falling out, I gained more weight, I couldn't sleep at night, I couldn't seem to "think" clearly, I developed a large bulge on my neck & it felt like my body was made of lead. I switched to ARMOUR & immediately it felt like the fuzziness in my mind was gone, I lost weight,the bulge on my neck got smaller, I started sleeping better at night,my hair quit falling out & my energy level increased drastically! For me, Armour works better! I would love to see a comprehensive unbiased study done with users of the thyroid medications to see if one truly does perform better than the other ones. F 60 2 years
1/1/2008
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 4  total thyroidectomy due to cancer Any side effects are better than cancer..... F 26 1 months
12/23/2007
 3  Hypothyroidism constant stuffy nose, rapid weight gain, dry mouth, chapped lips I was diagnosed with hypothyroidism about a month ago after complaining to my family nurse practitioner about some classic hypo symptoms. He put me on Levoxyl and initially I felt really great: more energy, better sleep patterns, clearer thinking, better moods. But that's all starting to change. I started the medication on December 5th, and in 18 days I've gained an astonishing 16 POUNDS!!! I haven't changed my eating patterns at all and the weight just keeps piling on. This completely contradicts my FNP saying that the Levoxyl would help my metabolism speed up to help me LOSE weight. This is incredbily discouraging since I lost 40 pounds last year and had kept it off for a year. Now in less than a month 16 of those pounds are back. You can't tell me that the Levoxyl doesn't have anything to do with it. Other side effects I'm noticing are a constant stuffy nose, constant thirst, and really dry mouth and lips. I'm going to try natural thyroid therapy from a Naturepath friend of mine to F 38 18 days
12/23/2007
 2  Total Thyroidectomy Weight gain, anxiety, anger flare-up, hot flashes It worked well for me for 15 years or so. Then suddenly, at menopause onset, I realized by trial and error, that Synthroid was increasing my hot flashes by about 80%, caused deep anger flare ups about 8 hours after ingestion of meds. I stopped three weeks ago, and have been losing weight very, very slowly without dieting for the firs time in my life. F 51 15 years
12/17/2007
 5  Hashimoto's Thyroiditis No side effects. F 32 5 years
12/13/2007
 1  Total thyroidectomy Nausea, chest pain, palpitations, headaches, hair loss, vision loss, constipation followed by diarrhea, joint pain, trouble eating, mood swings, and so many more. I had my thyroid out when I was 18 due to pre-cancerous tumors and I have had nothing, but awful pain, terrible sickness, and horrible "side effects". My doctor not only wont admit that my problems are side-effect related, but also is strongly discouraging me from going on Armour. They have been treating me for anxiety even though I have never had anxiety problems prior to surgery. I only pray that I can try Armour and see if it helps. F 22 4 days
12/12/2007
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 1  hypothyroid tingling through out my whole body, difficulty concentrating, brain fog, so called "anxiety attacks" sore muscles Thank you for this site. If I hadn't found it I would still be taking my doctors advice and be on synthroid. I stopped taking it in October (now on Thyroid)and I feel so much better. During the year I was on it,I was in ER three times feeling like I was having a stroke. This had NEVER happened to me before, and the first time was only a few days after I started this horrible drug. My numbers from blood tests never got into the normal range, but I felt better before, when I was originally diagnosed with a number of 100. Why would Dr.'s give you something that is worse than original symptoms? My Dr. had never heard of Thyroid (we don't have Armour in Canada) but my pharmacist said she's known of it for 30 years. Thank you again for sharing information on this site. F 30 14 months
12/10/2007
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 4  hypothyroidism I have been taking synthroid since I was 13. At the time, I was very tired, cold all the time, always in a brain fog. Even though this sounds like a typical teenager..lol...my mom decided to take me to the doctor anyway. I did some blood tests and it turned out that I had hypothyroidism. No shock really, my mom and my grandma have it as well. Well, 20 years later, still on synthroid, I have started to develop strange symptoms, joint pain, extreme fatigue, etc. I went to the doctor to have my thyroid checked again. I have been taking my medication consitently for 20 years now..what could possibly be wrong?? Well, it seems that I may have Lupus! Does anyone know if this drug has a link to Lupus?? I have never had a problem with this drug but now I am wondering if it has disturbing long term effects. F 33 20 years
12/7/2007

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