Comparing Levothyroxine vs NP Thyroid
| Levothyroxine | NP Thyroid (thyroid desiccated) |
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| Levothyroxine | NP Thyroid (thyroid desiccated) |
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Prescription only
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 |
Prescription only
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 medication guide. View more |
Related suggestions Underactive Thyroid (Hypothyroidism)
Hashimoto's disease (Chronic Lymphocytic Thyroiditis)
Hypothyroidism, After Thyroid Removal (Hypothyroidism, Post-Thyroidectomy)
TSH Suppression
Popular comparisons
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| More about Levothyroxine | More about NP Thyroid (thyroid desiccated) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Levothyroxine has an average rating of 5.2 out of 10 from a total of 873 ratings on Drugs.com. 40% of reviewers reported a positive effect, while 46% reported a negative effect. |
NP Thyroid has an average rating of 3.6 out of 10 from a total of 247 ratings on Drugs.com. 23% of reviewers reported a positive effect, while 66% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||||||||||
View all Levothyroxine side effects |
View all NP Thyroid side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
N/A |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Levothyroxine prices |
View all NP Thyroid prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Eltroxin, Ermeza, Euthyrox, Eutroxsig, Evotrox, Levo-T, Levolet, Levoxyl, Novothyrox, Synthroid, Thyquidity, Tirosint, Tirosint-Sol, Unithroid View more | Other thyroid desiccated brands include: APur Thyroid, Armour Thyroid, Bio-Throid, Nature-Throid, Niva Thyroid, Thyroid Porcine, Westhroid, WP Thyroid | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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240 hours |
168 hours |
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| CSA Schedule 1 View glossary of CSA 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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| Drug Interactions | |||||||||||||||||
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A total of 239 drugs are known to interact with Levothyroxine:
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A total of 233 drugs are known to interact with NP Thyroid:
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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August 21, 2000 |
N/A |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
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| Professional Resources | |||||||||||||||||
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N/A |
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| Related Treatment Guide | |||||||||||||||||
1 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.