Comparing Synthroid vs NP Thyroid
Synthroid | NP Thyroid |
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Synthroid (levothyroxine) | NP Thyroid (thyroid desiccated) |
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Prescription only
Synthroid replaces missing thyroxine and is used to treat hypothyroidism and other conditions associated with low thyroid hormone levels. The required dosage varies from person to person. Prescribed... View more |
Prescription only
Prescribed for Hashimoto's disease, Underactive Thyroid, TSH Suppression, Hypothyroidism - After Thyroid Removal, 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
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More about Synthroid (levothyroxine) | More about NP Thyroid (thyroid desiccated) | ||||||||||||||||
Ratings & Reviews | |||||||||||||||||
Synthroid has an average rating of 6.1 out of 10 from a total of 190 ratings on Drugs.com. 51% of reviewers reported a positive effect, while 35% reported a negative effect. |
NP Thyroid has an average rating of 3.4 out of 10 from a total of 244 ratings on Drugs.com. 23% of reviewers reported a positive effect, while 70% reported a negative effect. |
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Drug Class | |||||||||||||||||
Side Effects | |||||||||||||||||
See also: Synthroid side effects in more detail. |
See also: NP Thyroid side effects in more detail. |
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Generic Availability | |||||||||||||||||
Lower cost generic approved |
N/A |
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Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Synthroid prices |
View all NP Thyroid prices |
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Dosage Forms Available | |||||||||||||||||
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Brand Names | |||||||||||||||||
Other levothyroxine brands include: Eltroxin, Ermeza, Euthyrox, Eutroxsig, Evotrox, Levo-T, Levolet, Levoxyl, Novothyrox, 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 The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. | |||||||||||||||||
240 hours |
168 hours |
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CSA Schedule ** View glossary of terms | |||||||||||||||||
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 | |||||||||||||||||
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 | |||||||||||||||||
A total of 222 drugs are known to interact with Synthroid:
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A total of 215 drugs are known to interact with NP Thyroid:
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Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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Disease Interactions | |||||||||||||||||
First Approval Date | |||||||||||||||||
July 24, 2002 |
N/A |
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WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
N/A |
N/A |
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More Information | |||||||||||||||||
Patient resources | |||||||||||||||||
Professional Resources | |||||||||||||||||
N/A |
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Related Treatment Guide | |||||||||||||||||
** 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.