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Levothyroxine for Underactive Thyroid User Reviews (Page 2)

Brand names: Synthroid, Euthyrox, Tirosint, Levoxyl, Unithroid, Eltroxin, Tirosint-Sol, Thyquidity, Levolet, Levo-T Ermeza Novothyrox Eutroxsig Evotrox …show all brand names

Levothyroxine has an average rating of 5.1 out of 10 from a total of 438 reviews for the treatment of Underactive Thyroid. 41% of reviewers reported a positive experience, while 46% reported a negative experience.

Reviews for Levothyroxine

  • KEano
  • Taken for 1 to 6 months
  • July 3, 2019

Levoxyl (levothyroxine) "I was a long time Levoxyl user prior to the major recall that happened and I loved Levoxyl and felt fantastic before the recall that happened! I have tried it 4 separate times and each time I try it, I feel horrible. Imagine the most tired feeling you could ever feel!!! I cannot function and require naps, when I try taking it. Not sure what changes they made to the formula, but for me, it is horrible. I just had to share this, just in case anyone out there is feeling this same feeling. Trust me, the formula has changed and not for the better..."

1 / 10
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  • Vinay...
  • March 16, 2016

Synthroid (levothyroxine) "I just started this medicine about a month ago. It is making such a big difference in my appetite and my energy. I am a fairly young man at 23 years old. I knew something wasn't right with my body over the last few years, as I had gained about 30 pounds over the course of just a few months and felt so sluggish. It turns out, like many of you reading this, I have an underactive thyroid. I have heard that three drugs help with the thyroid hormones. Synthroid (T4 hormone), Cytomel (T3 hormone), and Armour Thyroid (T4 & T3 Hormones). Synthroid has gotten a bad rap because it's synthetic and it only covers the T4. Well, the T4 is most likely all you need because a T3 deficiency is rare. Synthroid is great. Stomach upset went away in 1-2 weeks."

9 / 10
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  • laura
  • April 24, 2021

Synthroid (levothyroxine) "Amazing!! I started on 25 mcg brand Synthroid then 50 mcg and now I'm on 75 mcg I almost feel like the old me my TSH went from 11 to 1.7 I wake up 4 am take my medicine and go back to sleep till my 6am alarm I have a cup of coffee when I get up to start my day."

10 / 10
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Frequently asked questions

  • Squir...
  • Taken for less than 1 month
  • October 15, 2013

"I can't believe how much better I felt immediately after starting this (25 mcg). I resisted taking it for a year. I was afraid of side effects and wasn't convinced that my thyroid was the problem. My TSH was only slightly high (average 6; high 11). I was so used to feeling lousy that whenever the doc asked about my energy, I said it was fine. I thought I was just aging fast (I'm 38). I'm not overweight, I've been athletic most of my life but have dragged during exercise for the past 2 yrs. I've also suffered from persistent depression and anxiety. I took antidepressants for a while but never felt great. I feel so good now. My physical stamina and motivation are back, I wake with energy. Very happy."

10 / 10
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  • Tramag
  • Taken for 1 to 6 months
  • July 3, 2013

Synthroid (levothyroxine) "I started taking Synthroid about 6 months ago and I feel really good. I went from feeling like a zombie to feeling like my normal self again. Before starting on Synthroid I had most of the typical hypothyroid symptoms...tiredness, dry skin, cold intolerance, puffy face, etc. Now the only symptom that still bothers me is water retention. My Dr. just increased my dose so hopefully that goes away soon."

10 / 10
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Are you taking this medicine?

  • KETG
  • August 10, 2013

"Before taking this medication, I thought I'd look up reviews to check for any side or long term effects caused by this medicine. I was terrified after reading so many bad reviews, but decided to take the medication regardless because I figured the medication would do me more good than harm. It's been about a year since I've been on levothyroxine 50mg and I must admit - I had never felt better! I was diagnosed with hypothyroidism at 19 and started this medication quickly after. My levels are normal and I can definitely notice the significant change in my health and everyday life. I am back to being happy and enjoy going out, not like before. No more headaches or fatigue. Thank God for this awesome medication. I recommend it 100% of the way!"

10 / 10
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  • Jen
  • Taken for less than 1 month
  • October 27, 2021

Tirosint (levothyroxine) "Was on Nature Throid for 13 years with no problems until they stopped manufacturing. I tried Armour, anxiety! Switched to Levothryroxine have been in the dumps and upper back and neck pain ever since. Recently switched to Tirosint, my hair immediately started falling out and was having severe hot flashes. Stopped taking and both stopped so now I just take Levo every other day. Not sure why these manufacturers cannot figure it out when there are so many people suffering. Please someone manufacture NatureThroid again. I am at a loss."

6 / 10
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More FAQ

  • Breeta
  • Taken for 10 years or more
  • June 21, 2016

"This medication is used to treat low thyroid hormone levels. I have Hashimoto's. This is an autoimmune disorder where the body attacks the thyroid until it no longer functions properly. Many people with low thyroid hormone levels have this but are not aware because doctors tend to treat with the medication rather than the whole disease. A lot of the people posting claiming side effects are actually describing side effects of LOW THYROID or HIGH THYROID! The medication is simply a replacement hormone and will not make you constipated, have brain fog, anxiety, fibromyalgia, heart palpitations, etc. unless you are taking TOO MUCH or TOO LITTLE of the hormone. A lot of the negative reviews of this medication are absolutely ridiculous!"

9 / 10
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  • Hyper...
  • Taken for 10 years or more
  • November 23, 2019

Synthroid (levothyroxine) "I am a 57 year old women who has hypothyroidism been taking 100mcg of synthroid for 10yrs I dread taking this pill every morning I feel like I have a out of body experience blood rushes to your brain and the anxiety hair loss now experience muscle and joint pains itch all over brain fog insomnia. For the past week I have been cutting it in half I will be stopping this crazy cycle I have lost so much weight just from the anxiety and insomnia I do not want to have to live off a synthetic pill and Klonopin and be told I am depressed I feel better without it"

4 / 10
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  • Annette
  • Taken for 2 to 5 years
  • May 2, 2018

Synthroid (levothyroxine) "I was taking Synthroid for three years. I was extremely ill during that time and it worsened. I could not eat, walk without falling, gained 30 pounds and my numbers did not go down. Finally my endocrinologist agreed to put me on Armour Thyroid medication. I lost all the weight I had gained in two weeks, could eat and walk. My whole life changed dramatically. Doctors are giving Armour a bad name, but I can tell you from my experience, it changed my life."

1 / 10
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  • irene
  • October 27, 2011

Synthroid (levothyroxine) "I have been on synthroid for about 7 years. I am 43 now. I still feel very tired, I have no energy. No motivation. My bones feel weak. I have been telling my doctor maybe I need a higher dosage. He said no. I told him maybe I need to change it he said no I'm fine but I know my body. My hair is falling, it's thin. Maybe a new doctor can help me."

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  • paticia
  • July 24, 2013

Tirosint (levothyroxine) "Tirosint has been great for me. I have hypothyroidism and was starting to have recurring symptoms. Tirosint got rid of these symptoms. My recurring symptoms while on Levoxyl (but only after over ten years on it) were- puffy face, constipation, fatigue. When I took Tirosint the symptoms were gone. I am very happy with Tirosint. I have no side effects."

10 / 10
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  • isabe...
  • Taken for 6 months to 1 year
  • February 2, 2020

Tirosint (levothyroxine) "I have been on every and I mean every thyroid medication known to my doctor. The Tirosint had worked the best because of my gluten and lactose issues. However, my insurance company refuses to pay for the medication and since my husband is retiring soon, I will have to go off my meds altogether. I simply cannot afford to pay. I also suffer from Lupus and other autoimmune diseases."

10 / 10
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  • Mic
  • Taken for 1 to 2 years
  • June 25, 2020

Tirosint (levothyroxine) "For the people who have concerns with hair loss. I have heard that if you need and can tolerate taking zinc supplement it decreases hair loss and also helps convert the t4 to t3. As always consult your Dr"

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  • Tia4l...
  • August 22, 2013

Synthroid (levothyroxine) "Although Synthroid keeps my test results "normal" I still have all of the hypothyroid symptoms. Severe exhaustion, sensitivity to cold, trouble concentrating, etc...like I haven't experienced since before I found out I had hypothyroidism. I was only put on Synthroid since the medication I am normally prescribed is no longer available."

3 / 10
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  • Nath
  • Taken for 10 years or more
  • March 1, 2019

Tirosint (levothyroxine) "I was on generic levothyroxine for over 30 years at 112mcg per day. I felt ok but over the past couple of years, I had up and downs with it. Got really worse since January with dizziness, extreme tiredness and nausea....come to find out the manufacturers replaced the lactose ingredient by mannitol....our culprit. Did some research, mannitol is no longer allowed in France and Belgium because of its side effects. I asked my doc to switch me to Tirosint (pure form with no mannitol or dyes) and my symptoms have subsided! So far so good ... need to wait to 2 weeks to check my levels...I bet I may even have to lower my dose as I seem to absorb this one better ... I am thankful to the manufacturer of Tirosint as I feel so much better!"

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  • Bobbie
  • Taken for 1 to 6 months
  • October 22, 2020

Euthyrox (levothyroxine) "Walmart switched my levothyroxine medicine without doctor permission. I started taking Euthyrox in May, started having sharp pain, muscle spam, headache, dry mouth etc. the pain became unbearable. Went to doctor and had inflammation, high sodium, kidney function decrease and pain all over. I couldn’t focus as I had brain fogs. This medicine should not be sold Walmart is try to save a dollars while putting our life’s at risk."

1 / 10
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  • Less...
  • September 11, 2011

Synthroid (levothyroxine) "Been on this medicine about 9 months after discovering my thyroid was starting to malfunction. I have had no weight gain or mood changes, and not a problem to speak of. My hair stopped falling out so much, it started growing like crazy along with my nails. I know I metabolize food more quickly, I will spare you the details. My skin isn't as dry, and I have been having an easier time with my mood in combination with other medications."

10 / 10
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  • RiesA
  • Taken for 1 to 6 months
  • November 1, 2020

Euthyrox (levothyroxine) "Been on thyroid replacement therapy for 30+ years. Originally diagnosed by an endocrinologist and followed by this dr yearly for many years. He always insisted on brand (Synthroid); said generics were too inconsistent. For the past 20 years, my thyroid levels have been followed and treated by my primary physician. Slight variances over the years, no notable issues. I'm a VERY compliant patient. Within the last year, WalMart, who I've used since they started offering $4 maintenance drugs, refilled my levothyroxine with a carded medication dispensed in boxes of 30 - Euthyrox. Four months ago, my yearly thyroid lab was slightly out of range - 0.1 on a scale of 0.3 to 5.6. My dose was adjusted from 0.112 to 0.100. My labs went from 0.1 to 41.6 Labs this out of range are typically newly diagnosed patients who have not had their thyroid tested and/or were not on medication! Euthyrox should not be available in the US and WalMart should not be dispensing."

1 / 10
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  • gfmis...
  • Taken for 10 years or more
  • February 2, 2013

Synthroid (levothyroxine) "I have been taking this medication for almost 22yrs. My thyroid is dead the Dr. said due to child birth. I started out on the lowest dosage. Dr. didn't want to shock my body I had to cut them in half for 2 weeks and then slowly went up from there. I am now taking 200mg now have been for several yrs now. Medication works good for me. If I miss a day I can tell and I feel really tired."

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  • Starz
  • November 16, 2020

Euthyrox (levothyroxine) "I've been taking levothyroxine 75mcg for several years without any problems. I recently was switched to euthyrox 75mcg by walmart pharmacy. I realized right away that they had given me a different medicine. I talked to the pharmacist right there about it and he said it was the same as the levothyroxine and due to the pandemic they were having a short supply of the levothyroxine. I took this medicine for almost a month before I realized it was causing me to have hives and also swelled my lip, foot and hand and it also caused my voice to change. I have been trying to figure out what I was allergic to thinking it was food allergies or detergent, etc. After reading others comments I now realize it's this horrible medicine. I called Walmart 4 days ago and told them about the hives/swelling and they immediately changed me back to my original medicine. The pharmacist told me it could take a week or longer before the swelling and hives are gone."

1 / 10
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  • Kcw
  • Taken for less than 1 month
  • January 22, 2017

"I've been on levothyroxine for 2 weeks now. I tested negative for hashimotos but I do have multi nodular goiter. The doctor told me that it may take a few weeks to feel better. Two days after taking this medication I felt a tremendous difference! I'm not tired all the time, cravings for carbs went away, I don't feel depressed and I feel more like myself than I have in years! I'm losing a lot of weight but I have completely changed my diet as well. I don't eat any processed foods anymore and it's been incredibly easy to do. I'm thankful for this medication because after 4 years of suffering with hypothyroidism without knowing what was wrong in the first place was awful."

9 / 10
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  • Candy
  • Taken for less than 1 month
  • October 30, 2020

Euthyrox (levothyroxine) "I had my Levothyroxine prescription refilled at Walmart like 3 weeks ago and they gave me Euthyrox saying that It was a new presentation. They said they had changed the name but it was the same medication. I’ve been having lots of headaches, itchy skin, dry mouth and loss of focus. I thought I had an allergic reaction to something but I haven’t changed anything, soap, detergent, lotion, anything. My husband told me it could be the new pills and now that I read all comments I realized that is my problem."

2 / 10
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  • Spudth
  • November 13, 2019

Synthroid (levothyroxine) "Mine is a long story. I began taking synthroid in 1993 after a required dr visit. All I can say is WOW! It was not a sudden boost but a lifetime of feeling listless and tired was gone. I have been on the medication now for about 22 years. If I miss a dose, generally doesn't feel bad. Miss it for several days and I start getting tired etc. Can't imagine being without it. Certainly changed my life. Didn't do it overnight but it sure did take away that sleepy feeling. In 1997 the doctor told me it was known to be uncommon for men to have thyroid issues. Well, I think thats because men aren't tested as much. Now in 2019 I believe the treatment rate for men is probably just below that for women. Good deal. Never had a real bad experience. Not sure though where the meds come from and the whole concept of changing brands. I'm sloppy in taking it as I do it in the morning then drink coffee and often can eat breakfast right away as well. Good Luck to all."

10 / 10
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  • Alexa...
  • Taken for 1 to 6 months
  • November 18, 2020

Euthyrox (levothyroxine) "I started taking this medication Euthyrox 30 days ago and I am feeling so horrible. I have upper back pain, neck pain, muscle weakness, terrible indigestion and acid reflux. I even went to test for Covid because I thought that was the issue. I tested negative. Do not take this medication. I feel sharp pains in my arms, overall achy in my throat. In the 38 years I have been taking levo..I've never had these issues. Switching immediately to name brand."

1 / 10
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60 Report

Reviews may be edited to correct grammar/spelling or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest are not published. This information is not intended to endorse any particular medication. While these reviews may be helpful, they are not a substitute for the expertise, knowledge, and judgement of healthcare professionals.