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Levoxyl and Brain Fog: What Users Say

Brain fog: mentioned by 4 users (10.5%)

Based on user experiences from 38 Levoxyl reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

hair loss 18.4%
brain fog 10.5%
fatigue 10.5%
tiredness 10.5%
anxiety 7.9%
insomnia 7.9%
nausea 7.9%
weight gain 7.9%

Reviews for Levoxyl

Showing 4 reviews tagged with "brain fog". Clear filters to view all 38 reviews.
Commonly mentioned side effects
  • Mea...
  • February 4, 2019

For Hashimoto's disease "Taking Levoxyl for about 6 months, and unfortunately not working for me. The stomach pain is unbearable at times and unpredictable. Hair loss, spasms, vivid dreams, headaches, that horrid brain fog. (Hashimoto causes hair loss, including the medication. Make sure your iron levels are optimal.) These are just a few of a long list of side effects. Took Synthroid for about 2 years, and it worked to some degree, but hair loss was a nightmare and the lactose coating was a no for me-continuous digestive issues. Digestive issues with Levoxyl is enough to get me to seek other treatment."

2 / 10
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36 Report
  • Jan...
  • January 29, 2016

For Hypothyroidism, After Thyroid Removal "I'm not sure how to rate Levoxyl, honestly. I had thyroid cancer and a full thyroidectomy 2 years ago, and I still have yet to feel like me again. I'll be good for a few months, then the weight goes back on. I'm exhausted, brain fog, and anxiety. I'm on 176 mcg and 10 mcg T3. I still feel like crap and am unable to lose weight. I used to do bikini competitions for bodybuilding, so I know how to be motivated to eat clean and hit the gym. I'm doing all of this with zero results. I'm beyond frustrated."

5 / 10
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38 Report
  • Ext...
  • Taken for 1 to 2 years
  • April 8, 2022

For Hypothyroidism, After Thyroid Removal "I was doing okay on Levoxyl until my last refill. Finally put it all together tonight and figured it out. Refilled March 3, 2022, and started to feel bad three days later. At first, I was tired, and then cold, hair falling out, my ears are ringing, increase in appetite, aches and pains, constipation, dry mouth, foggy brain, and just getting worse and worse. I do not have a thyroid, so I completely depend on the medication. This happened once before when I was on levothyroxine, and they ended up recalling that med. This is awful. Will call pharmacy tomorrow. Heart rate is in the 50’s, slowing down."

4 / 10
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5 Report

Frequently asked questions

  • OFa...
  • March 11, 2013

For Hashimoto's disease "Can't lose weight on Levoxyl. I sweat profusely, have brain fog, fatigue, and so many symptoms of hypo."

4 / 10
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42 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.