Comparing Levothyroxine vs NP Thyroid
Levothyroxine Remove Levothyroxine from your drug comparison | NP Thyroid Remove NP Thyroid from your drug comparison |
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Levothyroxine Remove Levothyroxine from your drug comparison | NP Thyroid thyroid desiccated Remove NP Thyroid from your drug comparison | ||||||||||||||||
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Levothyroxine replaces missing thyroxine and is the preferred medicine to treat hypothyroidism. The dosage of levothyroxine needs to be tailored for each individual and there is a fine line between... View more |
Prescribed for Hashimoto's disease, Underactive Thyroid, Hypothyroidism - After Thyroid Removal, TSH Suppression, Thyroid Cancer. NP Thyroid may also be used for purposes not listed in this... View more |
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Prescription only |
Prescription only |
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Ratings & ReviewsRecent helpful reviews |
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5.8
For Underactive Thyroid: I have been taking Levothyroxine .88 MG for at least 5 years. Recently I have developed Sweating and being very tired. I was taking my pill during the night as you are supposed to take it on an empty stomach. I have recently discovered that taking it at that time has caused me to have pounding heart beats and fluttering in my chest. I went through a stress test only to realize it has been caused by my thyroid medication. I changed it to morning before breakfast and have found it to be better. However I still get tired very easily. |
3.4
For Underactive Thyroid: I cannot take synthroid so years ago my dr switched me to Armour and it worked great! Then for a year they stopped making it. I started on what is called just Thyroid in Canada made by Erfa. It worked beautifully. Then after about 3 years it went south on me. Tried Armour again and it was not good for me anymore. I have been on NP for 3 years and this fall I was depressed, anxious, I’d get angry. I couldn’t figure out what happened. Never thought of it being NP until 2 weeks ago. I found out they no longer manufacture the pill in Georgia but it is now manufactured in Europe but no one knows where. I stopped the pill for 3 days and felt so calm and actually really good. Then started on a half dosage for 4 days and felt good. Today I took a full dosage and I feel a little weird but not like before. My Dr wants me to see an Endo ASAP, which I will after giving this a few more days. If they change any filler then that’s what we get the symptoms from. For Underactive Thyroid: Was doing well on Naturethroid, up until they seemed to change the formula. So switched to NP. Fatigue ok BUT brain fog much worse, painful joints, stiffness in muscles and leg pain that feels similar to restless legs. The worst symptom though, is headaches. Constant. Am now experimenting with altering my dose (again!) but I’ll have to swap to Armour I think. I’m in the U.K. Getting hold of NDT is like finding a unicorn. I despair. I wish Naturethroid had never changed. I know they deny a reformulation but it worked like a dream for me before their manufacturing issues and I felt well. Now I’m back in the hypo pit and it’s dreadful. |
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Drug Class |
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Side Effects |
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See the full levothyroxine side effects document. |
See the full NP Thyroid side effects document. |
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Pricing and Coupons* Prices are without insurance |
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View all levothyroxine prices |
View all NP Thyroid prices and generic prices |
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Generic Availability |
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Yes (this medicine) |
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Dosage Form(s) Available |
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Brand Names |
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Eltroxin, Euthyrox, Eutroxsig, Evotrox, Levo-T, Levoxyl, Novothyrox, Synthroid, Thyquidity, Tirosint, Tirosint-Sol, Unithroid View more | Other thyroid desiccated brands include: Armour Thyroid, Bio-Throid, Nature-Throid, Thyroid Porcine, Westhroid, WP Thyroid | ||||||||||||||||
Half LifeThe half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. |
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240 hours |
168 hours |
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CSA Schedule**View glossary of terms. |
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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Pregnancy Category |
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Category A
Studies show no risk
See the full Pregnancy Warnings document. |
Category A
Studies show no risk
See the full Pregnancy Warnings document. |
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FDA Alerts |
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N/A |
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Drug Interactions |
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A total of 199 drugs are known to interact with levothyroxine:
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A total of 191 drugs are known to interact with NP Thyroid:
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Alcohol/Food/Lifestyle Interactions |
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Disease Interactions |
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First Approval Date |
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August 21, 2000 |
N/A |
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WADA ClassView World Anti-Doping Agency classifications. |
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N/A |
N/A |
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More Information |
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Consumer Resources |
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Professional Resources |
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Related Treatment Guide |
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** The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
For Underactive Thyroid: I first found out I had hypo thyroid 10/24 (OB checked bc I've been trying to conceive) TSH Level 8.7. After taking 50mg for 1month my TSH level went to 3.0. Unfortunately after that I started getting neg side effects such as constantly sleepy, unfocused & feeling really out of it, slight depression, & exhaustion. I hated it. A friend who was hypothyroid recommended taking Kelp Vitamins for the Iodine. I started taking 25mg Levo & my Kelp Vit daily. Jan 20 TSH was at 3.5 (Dr wanted me to stay on same 50mg prescription but I was still having negative side effects). Also had Vitamin D checked Jan 20 per friend recommendation & found out that was low too. So I STOPPED taking Levo, and ONLY took Vit D & Kelp Vit. Apr 18 levels checked again & TSH was 2.8 HALLELUJAH!