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NP Thyroid and Hair Loss: What Users Say

Hair loss: mentioned by 19 users (7.7%)

Based on user experiences from 247 NP Thyroid 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.

anxiety 14.2%
tiredness 12.6%
brain fog 12.1%
fatigue 11.7%
headaches 11.7%
weight gain 9.7%
depression 8.9%
heart palpitations 8.1%
joint pain 8.1%
hair loss 7.7%

Reviews for NP Thyroid

Commonly mentioned side effects
  • Ann...
  • Taken for 1 to 6 months
  • June 11, 2020

For Underactive Thyroid "I’m updating everyone from my September 2019 post under the name 'Annie 55 yrs old'. I took NP Thyroid for 1 month and 5 days before stopping the med. I had 3 months of massive hair loss and a rollercoaster of emotions. I lost 95% of my hair. It is now coming back, thankfully, and I also feel like my emotions are back in check. NP Thyroid, I believe, was the cause of my hair loss. I just received a letter from Kroger (where I had my prescription filled) that there’s a recall for certain lot numbers of NP Thyroid because testing found these lots are super potent and may have 115.0% of the labeled amount of Liothyronine (T3)! This is unbelievable and so wrong! Everyone who starts feeling worse on this med needs to stop immediately and get on something else. I made a report with the FDA and haven't heard back since last September, very disappointed with them as well. This should be rated a 0 instead of 1."

1 / 10
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131 Report
  • Jul...
  • April 7, 2016

For Underactive Thyroid "I took Armour Thyroid for the last 10 years. When the formula was changed a couple of years ago, all of the hypothyroid symptoms set in: weight gain, hair loss, etc. My new doctor switched my prescription to NP Thyroid about 6 months ago. Such a huge improvement!!"

9 / 10
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66 Report
  • Lys...
  • Taken for 6 months to 1 year
  • February 3, 2023

For Underactive Thyroid "I started taking this back in July 2022 because my insurance didn't cover Armour. This was a horrible mistake. At first, I didn't notice a huge difference, but within a couple of months, my hair started falling out, I had aching joints and weird back pain that I had never experienced. I gained lots of weight, too. I got my labs done, and they did not show hypothyroid, but all my other female hormones were a mess. I am going back to Armour and praying I go back to feeling like myself."

1 / 10
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20 Report

Frequently asked questions

  • Anonymous
  • October 25, 2021

For Underactive Thyroid "I was on Armour Thyroid for many years. Pharmacy recommended NP because of the price difference, so switched me to NP, and I noticed extreme flu-like symptoms, headaches, hair loss, insomnia, swelling (even facial swelling), all-over body pain, and constant exhaustion. I asked to be switched back to Armour after a month of misery on NP, and to please make note on my account to NEVER give me NP again because of the terrible reactions. After new blood work, I unknowingly was given NP again and took it without realizing that it wasn’t Armour. My life became a living nightmare! The anxiety attacks have been awful. My nails break easily, hair falls out in alarming amounts, continuous dull headaches accompanied by brain fog that has been very concerning. The feeling of exhaustion is unbelievable, and I cannot sleep. Joint pain, miserable indigestion and reflux, profuse sweating, inflammation, and muscle aches. My energy is ZERO, and the crying makes me feel crazy! NP Thyroid is HORRIBLE!!"

1 / 10
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21 Report
  • Ann...
  • September 22, 2019

For Underactive Thyroid "NP Thyroid was prescribed for me for the first time, so I have no other meds to compare to. The first 4 days, energy, positive weight loss. 2 weeks, my hair feeling dry & breaking. Shortly after this, hair is falling out from the root in GREAT amounts! I have fine hair and really cannot lose anymore. My doctor said to cut my 30mg dose in half. This didn’t help, my hair continued falling out. Finally, she said to go off completely. I was on this for one month, 5 days. After going off, I got weepy, depressed, and felt worse than before I started. It’s been 15 days since stopping the NP, and my hair isn’t falling out as much. I’m not feeling as weepy anymore. I have some weird dry bumps on my scalp that just started since this med, and I have a dermatology appointment for that next. The pills smell like urine. I thought that was normal as well. I am going to be very apprehensive about trying another medication. But for now, still dealing with the aftereffects of this horrible medication."

1 / 10
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26 Report

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  • Sun...
  • Taken for 2 to 5 years
  • June 30, 2019

For Hashimoto's disease "I was on Synthroid for about 15 years, it made my hair fall out, and I was always exhausted. I told my endocrine doc, and he told me that it wasn’t the Synthroid, it was my Hashimoto's :-( Fast forward to two years ago, I moved and got a new doctor and hairdresser. The hairdresser asked me how long I’d been on Synthroid, I told him 15 years. He said to get on a natural NP Thyroid. I did and immediately felt better, and my hair came in thick and shiny!"

10 / 10
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25 Report
  • Mis...
  • Taken for 1 to 2 years
  • June 25, 2019

For Underactive Thyroid "I hate this medication. I keep trying to get the pharmacy to switch me back to the Armour Thyroid, but they won't. They claim this is the generic. On NP Thyroid, I feel tired all the time and have all the symptoms of hypothyroidism. My hair is falling out again in clumps, and my weight loss is stalled. I used to be on WP Thyroid before they had manufacturing issues and loved it, but I can't get on it anymore. I think I may have my doctor switch me to Nature-Throid or move my prescription to another pharmacy because I'm tired of feeling tired and lethargic all the time."

1 / 10
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  • Vpa...
  • Taken for 1 to 2 years
  • October 11, 2020

For Hashimoto's disease "I was originally on generic levothyroxine, which I felt horrible on and had to be given 175 mcg to feel even marginally better. Switched doctors and requested Armour, at the time (2014), insurance covered it. Not sure when the Armour reformulation happened, but I've always felt at the most NORMAL on it. There were changed healthcare laws and my insurance booted Armour, so I had to start taking NP. It was awful. I would swing from hyper to hypo in the span of days, constantly losing hair, skin was breaking out and dry, had to take so many supplements to even out the symptoms of Hashimoto's. Was told there was a recall on my NP dose back in June 2020. Decided to switch back to Armour and just pay out of pocket. Three months later, I am feeling like a human being again."

5 / 10
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15 Report
  • Bra...
  • Taken for 1 to 2 years
  • May 3, 2020

For Underactive Thyroid "I had been on Armour Thyroid for 60 years. First, it was made by Armour and then manufactured by Forest Labs, and it worked fine until they reformulated it. I then took Nature-Throid with no problems up until they had a manufacturing problem. I got tired of paying big bucks for a compounding pharmacy to make it, and for a while, NP Thyroid worked. Then about August 2019, something changed, and my hair was falling out, and I had symptoms like others described. Fortunately, Nature-Throid was once again in production, and I am having no problems with it. Unfortunately, Sam's Club would not reimburse me for the latest bottle because the FDA did not recall it. I would love to take genuine Armour Thyroid again, but I don't know what company is making it."

1 / 10
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16 Report
  • Don...
  • Taken for 2 to 5 years
  • December 5, 2021

For Hashimoto's disease "Switched from other brand after moving to a naturopath Dr. to help with my Hashimoto's. I really would not recommend Thyroid NP. For the last 2 years, I’ve had stomach burning, enough to make me think it was an ulcer, and loss of eyebrows and hair on my head, absolutely zero energy, leg aches, weight gain, and a massively foggy brain as of lately… I’ve been off for 3 days, and I can already feel the difference. Leaving my naturopath and heading back to my regular Dr. for Synthroid. I didn’t connect the dots until recently. And this stuff is not regulated well, it had 3 recalls in the last year… that’s not good."

3 / 10
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12 Report
  • Dew...
  • Taken for 6 months to 1 year
  • April 8, 2020

For Hashimoto's disease "Started on T4, zombie. Then Armour, that went downhill. I was then put on Naturethroid, that went downhill, and I changed to NP last year. I have become insular, don't want to go out much, have gained 2 stone, from a size UK 8 to UK 12. Very irritable, angry. Hair loss has increased (it never really stopped, only slowed up). Skin conditions that went away, granuloma annulare, have flared up. General feeling that if I died tomorrow, I wouldn't care. I am not depressed. Armour is 400 euro a month here in Ireland now, I can't afford that. Don't know what to do? Will try to change to Naturethroid or I guess back to synthetic T4, but will ask for T3 this time around."

3 / 10
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16 Report
  • aco...
  • Taken for 1 to 6 months
  • May 15, 2018

For Underactive Thyroid "Horrible! Sounds similar to others' experience. Was switched because NatureThyroid disappeared off the market. Within a couple of weeks, noticed a huge shift. Periods became irregular again, eyebrows thinning, hair falling out, insomnia, mood swings, weight gain... the last straw was a trip to the ER for heart attack symptoms last week. Thank goodness NatureThyroid is available again... and now directly from my ND. Just got back on it yesterday. Looking forward to feeling great again."

1 / 10
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20 Report
  • Lor...
  • Taken for 1 to 6 months
  • July 22, 2022

For Underactive Thyroid "I started taking NP Thyroid in June. For the first week, I felt great, but then I started to notice some of the pills had a terrible odor, and the taste was worse. I have cats, and they smelled like cat urine, as well as my urine. Not every pill had the odor, but the ones that did, that I took, caused me terrible stomach cramps. Then, as time went on, my hair loss was terrible, constipation was 5 days, anxiety, depression, severe fatigue, it all came back as well as hot flashes. I let my doctor know, and he wanted me to have blood work before he made any changes, so after 5 weeks, I had blood work. I got it back, and my T3 was high, TSH low, and T4 was good. Before the blood work, I had blood work done, and the levels I just mentioned were all in range. I stopped it immediately. Unfortunately, my doctor is on vacation, so I can't get any meds like LDN, which worked wonders for me in the past. I am so exhausted I can barely function. I would not recommend this medication to anyone."

1 / 10
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8 Report
  • Mea...
  • Taken for 1 to 2 years
  • June 26, 2019

For Underactive Thyroid "I had horrible side effects on Synthroid. My hair fell out, I was lethargic, the side effects almost weren't worth the little good it did. With Nature Thyroid, the inside of my ears itched all the time, and wax production was excessive, and I still lost excessive hair and even eyebrows. With NP Thyroid, I experienced no side effects and an actual improvement in my thyroid function over time."

10 / 10
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14 Report
  • New...
  • Taken for less than 1 month
  • September 29, 2022

For Underactive Thyroid "I was prescribed NP Thyroid by my GYN, who is also a midlife wellness expert. She also started me on BioTE hormone replacement therapy (BHRT). Since I've been losing hair steadily over the last ten years, I requested something to stop the hair shedding. After taking NP for a few days, my hair started shedding at double the usual rate. Alarmed at the rate of hair shedding, and after research, have stopped this. Also, felt cold hands and racing heart. I will be returning these to the pharmacy for a refund."

1 / 10
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7 Report
  • GST...
  • Taken for 1 to 6 months
  • October 28, 2022

For Hashimoto's disease "Terrible med. Unbeknownst to me, the pharmacy gave it to me in the place of Armour, which I have been taking for years and works great. I took NP Acella for about a month and a half, and all of my symptoms came back with a vengeance. I gained weight, became fatigued and depressed, started losing hair, couldn't sleep at night, had brain fog, etc. Went back to Armour and was fine again. If I could, I would give NP Thyroid Acella a 0. Also, I wish pharmacists warned us when they replace a prescription."

1 / 10
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5 Report
  • Ala...
  • Taken for 6 months to 1 year
  • August 10, 2019

For Hashimoto's disease "If you have subclinical hypothyroidism due to Hashimoto's, be careful with NDT! It is most likely too strong for you. My hair fell out, and I felt awful on it, and it raised my thyroid antibodies. I am currently using a compounding pharmacy for synthetic T4 without fillers and a small 5 mcg dose of extended-release synthetic T3 with great results. T3 is the metabolically active thyroid hormone, but you need T4 for your hair, skin, and nails... it’s not all about adrenal fatigue either... NDT is just too strong for subclinical hypothyroidism in these cases."

2 / 10
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8 Report
  • Reb...
  • Taken for 1 to 6 months
  • September 11, 2019

For Underactive Thyroid "Has anyone experienced hair loss and nail splitting from NP Thyroid? After 6 months, I had enough and went back to Armour. Hopefully, that will do the trick! Wish you well!"

5 / 10
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19 Report
  • Sun...
  • September 27, 2022

For Hashimoto's disease "My hair started falling out immediately after starting this medication."

2 / 10
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6 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.