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Nature-Throid and Brain Fog: What Users Say

Brain fog: mentioned by 6 users (8.2%)

Based on user experiences from 73 Nature-Throid 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 19.2%
weight gain 12.3%
fatigue 11.0%
brain fog 8.2%
joint pain 6.8%
headaches 5.5%
tiredness 5.5%
chest pain 4.1%
depression 4.1%
weakness 4.1%

Reviews for Nature-Throid

Commonly mentioned side effects
  • lot...
  • Taken for 1 to 6 months
  • September 22, 2013

For Underactive Thyroid "This medicine has changed my life. After 3 courses of Levaquin for MRSA after surgery last summer, I thought that the extreme fatigue, muscle pain, mental fog, and joint pain that I've had were just part of aging (I'm 61), or side effects of the antibiotic. My TSH levels were in normal range, but my Naturopath saw that the free T-3 and T-4 were very low. We started Nature-Throid in late July, and by August, I was starting to feel human again. It's GREAT."

10 / 10
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240 Report
  • Mam...
  • Taken for 10 years or more
  • February 26, 2019

For Hashimoto's disease "I have used Nature-Throid for 15+ years very successfully, that is until the 'Great Back Order of 2017'. I scrambled and panicked and found enough at other pharmacies until it came back in early 2018. My question is: WHAT DID THEY DO TO IT? Hypothyroid symptoms returned with a vengeance, I have gained 30 lbs since last January, have lost nearly all of my eyebrows, ache all over in my joints and muscles, can't think clearly half the time and on and on and on. It's so hard to have fallen into this hole, and the sad part is no one has any answers. Now Nature-Throid is on backorder again, but who cares, it doesn't work anyway. Run, don't walk in the other direction from this defective thyroid hormone (or whatever it is)."

1 / 10
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78 Report
  • Lis...
  • February 2, 2015

For Thyroid Cancer "Nature-Throid seriously changed my life! I did so terrible on Synthroid; I was gaining weight despite the fact that I was working out and eating well, losing my hair, major brain fog, headaches with aura, and joint pain. I feel awesome on Nature-Throid and am losing weight even."

10 / 10
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108 Report

Frequently asked questions

  • Anonymous
  • Taken for 2 to 5 years
  • June 14, 2020

For Hashimoto's disease "Been taking Nature-Throid (48.75 mg) for about 2 years now, and feel great as long as I also sleep well, manage my stress, and stay mostly on the Autoimmune Paleo diet. Have been playing around with diet and lifestyle, and if I eat certain things, I notice a rise in TSH, as well as symptoms (brain fog, low energy, and weight gain). I checked it by sticking to the AIP diet for 3 months, and my TSH went to normal range, and I felt normal. It’s not ideal, but worth it to feel good. Also, I always take meds on an empty stomach in the AM."

10 / 10
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22 Report
  • sam...
  • February 9, 2020

For Underactive Thyroid "The newest lab tests show that my thyroid is way off, and I feel like something has gone wrong, starting the last few years. When I try to meditate/rest, every cell in my body is screaming at me that something is wrong. So, after a dozen doctors and lab tests, I changed MDs and switched off Nature-Throid. Email from 2017 regarding the issues I was having with my prescription for my thyroid. Nov 25, 2017, got one new bottle of RLC Nature-Throid, and I had some of the older RLC Nature-Throid from Rite Aid leftover, enough that I can taste a difference between the new bottle and the previous bottle from RLC Lab. I have been double-checking this for a week and noticing a difference: I noticed I have uncomfortable brain fog, lower energy. I was taking it as prescribed, 130 mg. I called RLC Lab and they changed to robots and had troubles."

2 / 10
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24 Report
  • Mis...
  • Taken for 1 to 2 years
  • September 18, 2020

For Underactive Thyroid "Today, I suddenly found out that Nature-Throid medication has been recalled and is no longer available. I've been on it for over a year. However, after reading about the recall, it makes me wonder how long the subpotency has actually occurred because my last TSH values in Feb 2020 were higher than they have been in a long time. I have a lot of symptoms of hypo: constipation, hair loss, brittle nails, fatigue, brain fog, dry skin, etc. However, when my doctor tried to up the dose to the next highest, I had horrible heart palpitations. I'm scared and concerned because I have so many allergies and intolerances. This medication contained no excipients that caused me issues. The only one available like it is Tirosint, which only contains T4. My doctor called it in, and it's not covered by insurance, so I have to go through a specialty pharmacy. I am so angry."

1 / 10
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11 Report

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