Comparing NP Thyroid vs Synthroid
| NP Thyroid (thyroid desiccated) | Synthroid (levothyroxine) |
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| NP Thyroid (thyroid desiccated) | Synthroid (levothyroxine) |
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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 |
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 |
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 NP Thyroid (thyroid desiccated) | More about Synthroid (levothyroxine) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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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. |
Synthroid has an average rating of 6.1 out of 10 from a total of 191 ratings on Drugs.com. 51% of reviewers reported a positive effect, while 34% 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 NP Thyroid side effects |
View all Synthroid side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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N/A |
N/A |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all NP Thyroid prices |
View all Synthroid prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Other thyroid desiccated brands include: APur Thyroid, Armour Thyroid, Bio-Throid, Nature-Throid, Niva Thyroid, Thyroid Porcine, Westhroid, WP Thyroid | Other levothyroxine brands include: Eltroxin, Ermeza, Euthyrox, Eutroxsig, Evotrox, Levo-T, Levolet, Levoxyl, Novothyrox, Thyquidity, Tirosint, Tirosint-Sol, Unithroid View more | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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168 hours |
240 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 233 drugs are known to interact with NP Thyroid:
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A total of 239 drugs are known to interact with Synthroid:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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N/A |
July 24, 2002 |
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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.
See also:
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.