Euthyrox and Insomnia: What Users Say

• NAa...
• September 8, 2020

For Underactive Thyroid "Walmart switched my levothyroxine to Euthyrox. The first day, I had a headache almost at migraine level. Within two weeks, my hair was falling out, insomnia every night. I have been on levothyroxine for 12 years with no issues. Do not take this medication."

• Geo...
• Taken for 1 to 6 months
• October 12, 2020

For Underactive Thyroid "Began taking in early June when Walmart pharmacy refilled my prescription, saying Euthyrox was their new generic and what I would be getting going forward. Within days of taking the first pill, I began to experience headaches that progressively increased in duration and frequency during the four months of taking Euthyrox. Then began the insomnia, tinnitus, heat intolerance, uncontrollable sweating, swelling in the face and eyelids, diarrhea, neck and shoulder pain, blurred vision, fatigue, occasional dizziness, dry mouth, loss of appetite, and brain fog. Stopped Euthyrox almost two weeks ago, and most symptoms have gone away except for headaches and neck pain. Definitely returning to the prior medication, this one was disabling."

• LJL...
• Taken for less than 1 month
• August 8, 2020

For Hashimoto's disease "This drug has many side effects that I am experiencing: labored breathing, hair loss, blurred vision, fatigue, chest pain, heart skipping beats, nausea, and insomnia. I was taking a little oblong yellow levothyroxine that worked great, but the drug store changed companies, and this pill is round and white."

• Kri...
• April 6, 2021

For Underactive Thyroid "I also had a terrible experience with this drug, my hair has been falling out so badly and also feeling lethargic and not sleeping. I went to Walmart, and they changed me back to Levothyroxine and were great about it. I was on the Euthyrox for months before I figured out what was happening."

• Hor...
• Taken for 1 to 6 months
• December 22, 2022

For Underactive Thyroid "I have been on Levothyroxine for 4 years. I recently had my prescriptions moved to, guess where.... Walmart.... and they switched me to Euthyrox. I have been feeling awful. Horrible mood swings, insomnia, sweating out of nowhere, waking up due to the fact that my heart is beating 85 bpm while sleeping and horrible heart palpitations that go on for hours. The heart palpitations have been so bad that I almost went to the emergency room. I did see my doctor yesterday, and I did ask them to do blood work and am waiting for my results this morning. My doctor wants to put me on a heart monitor for a week and do a stress test for my heart. After reading these reviews, I am certain it is this drug. I am seriously considering seeking legal counsel. The pharmacists at Walmart are just that, pharmacists. Who has given them the right to change anyone's medication without a doctor's consent?"

• Pom...
• Taken for 6 months to 1 year
• April 5, 2021

For Underactive Thyroid "Been on levo for 35 yrs. Started Euthyrox in May 2020 when Walmart changed meds. Pharmacist said it was the same thing, just a different manufacturer. Was fine for a while, then started feeling bad. Saw Dr in Dec 2020 for hives on my shoulders and forearms. Levels were slightly elevated but not enough for concern. Between Dec 2020 and Mar 2021, it all went south. Started having strange symptoms - sensitive skin from scalp to foot, itching, insomnia, palpitations, and weird headaches that seemed to come from nowhere, and then the rash started. Nothing put on topically helped. Changed detergent, lotion, and shower gel, and it got worse. Suspected the Euthyrox. On Mar 30, found these reviews that explained it all. Saw Dr the next day, said I was the 2nd person that day with the same problem. After doing research on my levels, in Mar 2020 my level was 3.5; in Mar 2021, the level was 23."

• Ano...
• Taken for 1 to 6 months
• March 21, 2023

For Underactive Thyroid "I've been diagnosed with minor hypothyroidism in Oct 2021 and soon after, prescribed Euthyrox. Started on 25 mcg and experienced side effects since day one. Despite taking it as early as I could every morning, the side effects occurred anyway. I became unable to sleep at night and extremely irritable during the day. At that time, I was taking more meds, so I checked the potential side effects of each one. I also started college. Thinking it was the pre-college angst that kept me awake every night, I decided to drop out. I dropped out, but my insomnia didn't go away. A few days later, I had an appointment with a different doctor. Noticing my unusual rudeness (I wasn't rude before Euthyrox), he decided not to schedule any further appointments for me. It was not until mid-November that I decided to quit Euthyrox. And I'm happy I did because I could finally sleep at night again. It turned out Euthyrox was the culprit for all my anger and my sleepless nights. I'm never taking Euthyrox ever again!"

• Jac...
• Taken for less than 1 month
• July 1, 2021

For Underactive Thyroid "I, like many who have reviewed Euthyrox, received it from Walmart. I have been on Levothyroxine for many years without issue. I started on the Euthyrox, and within one week, I started having insomnia. I went back to Walmart with the boxes in hand, and the pharmacist immediately came to the counter and said, “I bet you are having issues.” I wasn’t the first person she had helped with a similar problem, although she did say she had not heard about insomnia. She got me the previous Levothyroxine at no charge, and I’m a happy camper. This is not a drug you should be interchanging willy-nilly!"

• Ms ...
• July 15, 2021

For Underactive Thyroid "I’m so glad to know I’m not the only one! I’ve been on Unithroid for 2 years for hypothyroidism with no issues! Went to Walmart Pharmacy and was given Euthyrox. I have been taking it for 4 days, and I’m nauseous, no appetite, my body hurts, headache, and insomnia! What the heck! I called my doctor this morning, and he contacted the pharmacy to tell them to refill my Unithroid! I haven’t felt this sick in years."

• new...
• Taken for 1 to 6 months
• October 19, 2021

For Underactive Thyroid "After taking levothyroxine from Alvogen for 15 years and Synthroid prior to that, all with perfectly normal thyroid levels, Walmart switched my prescription to Euthyrox in late June. After a short time, I began to feel as I did when first diagnosed with hypothyroidism many years prior: rapid/irregular heartbeat, hair loss, insomnia, extreme fatigue, and new side effects such as difficulty swallowing, under-eye swelling, tightness in the chest, and nervousness/irritability. I called my doctor when Walmart again tried to give me a refill of Euthyrox. The doctor called in my original meds, and the cost went from $9 for 90 days of the levothyroxine to $288 now!!! I'm changing to a new pharmacy. I'm going back to 75 mcg of the Alvogen levothyroxine!"

• Eut...
• Taken for 1 to 6 months
• December 19, 2021

For Underactive Thyroid "On a whim trying to figure out what is wrong with me. No doctor seems to help me. I researched the difference between the two drugs & mercy. Have I found the culprit? I have been feeling so lethargic, insomnia, weak, dizzy, fast heart rate, sweats if I try to push myself and faint. Physically unstable, nauseated, ankle and leg cramps, foggy, foggy. Memory getting bad, vision, headaches, chest, indigestion. I was given Euthyrox by Walmart instead of Levothyroxine. Taking for 3 months. Changed pharmacy in the meantime to Walgreens. I picked up new 90 Levothyroxine."

• Yvo...
• Taken for 1 to 6 months
• October 31, 2021

For Underactive Thyroid "This drug needs to be taken off the market! Should have been taken off before now with all the negative reactions. My dosage is 88 mcg. My experience after beginning this drug is as follows: insomnia, headaches, fatigue, blurred vision, heart palpitations, shortness of breath, leg cramps, weakness in legs. I am so angry! Can't we trust our FDA to approve only what is safe for us? Look at the low rating!"

• Car...
• Taken for 1 to 6 months
• March 18, 2022

For Hypothyroidism, After Thyroid Removal "This stuff is awful. Had thyroid removed November 17th, 2022. It took a while to get my levels normal. When they finally were normal, I felt terrible. Chest pains, anxiety, going from cold to burning up, insomnia, loss of focus, and so much more. Through the grace of God, I found this website. The doctor immediately changed my medication when I showed him what I found. It is really bad and makes you feel out of control because you can't slow your heart down or do anything about the anxiety. I have been off of it for 3 days, and I am praying the side effects go away soon. If you are having these problems, take a deep breath and give yourself a break. Exercise was the only thing that would help, but the chest pain, fast heartbeat, and anxiety would come right back. Tell the people around you so they can give you a break. It makes everything really hard, and the smallest thing will frustrate you, and then you feel worse. Try to remember it's the medicine and not you, and it will get better."

• Mou...
• Taken for 6 months to 1 year
• April 1, 2022

For Underactive Thyroid "When my doctor upped my dosage from 50 mcg to 75, Walmart gave me this box instead of the bottle of a 3-month supply at once. Euthyrox. I've never been completely happy with the hypothyroid meds, as I've never gotten rid of my symptoms of hypothyroidism. My dosage is too low, and my doctor won't listen to me. My last test showed my blood level at a 2.8. The 'normal' range being 2.4 - 4.2. Being that low is NOT okay for me as a woman still of childbearing age, and my hair loss has not let up at all, like it should if I was on the right dosage for my body. But since June 24, 2021, when I was switched to this Euthyrox, I'm even more miserable. I didn't realize the side effects were so bad from what I'd been on previously. I started doing research in March, and everything I've found has not been good for Euthyrox. My symptoms/side effects have been shortness of breath, muscle spasm, headache, nervousness, irritability, insomnia, tremors, muscle weakness associated with Euthyrox. No more of this rubbish."

• Cam...
• Taken for 6 months to 1 year
• March 10, 2021

For Underactive Thyroid "Hair loss even after taking several months, excessive, not just a little. Not able to sleep, leg pain, achy joints. This is not the same."