Comparing Euthyrox vs Synthroid
| Euthyrox | Synthroid |
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| Euthyrox (levothyroxine) | Synthroid (levothyroxine) |
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Prescription only
Prescribed for Hashimoto's disease, Underactive Thyroid, Hypothyroidism - After Thyroid Removal, TSH Suppression, Thyroid Suppression Test, Myxedema Coma. Euthyrox may also be used for purposes not... 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 Euthyrox (levothyroxine) | More about Synthroid (levothyroxine) | ||||||||||||||||
| Generic Status | |||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Euthyrox has an average rating of 1.6 out of 10 from a total of 150 ratings on Drugs.com. 5% of reviewers reported a positive effect, while 93% reported a negative effect. |
Synthroid has an average rating of 6.1 out of 10 from a total of 183 ratings on Drugs.com. 51% of reviewers reported a positive effect, while 35% reported a negative effect. |
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| Drug Class | |||||||||||||||||
| Side Effects | |||||||||||||||||
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See also: Euthyrox side effects in more detail. |
See also: Synthroid side effects in more detail. |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Euthyrox prices and generic prices |
View all Synthroid prices and generic prices |
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| Dosage Form(s) Available | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Other levothyroxine brands include: Eltroxin, Ermeza, Eutroxsig, Evotrox, Levo-T, Levoxyl, Novothyrox, Synthroid, Thyquidity, Tirosint, Tirosint-Sol, Unithroid View more | Other levothyroxine brands include: Eltroxin, Ermeza, Euthyrox, Eutroxsig, Evotrox, Levo-T, Levoxyl, Novothyrox, Thyquidity, Tirosint, Tirosint-Sol, Unithroid View more | ||||||||||||||||
| 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. | |||||||||||||||||
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240 hours |
240 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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| Drug Interactions | |||||||||||||||||
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A total of 201 drugs are known to interact with Euthyrox:
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A total of 201 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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May 31, 2002 |
July 24, 2002 |
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| WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient resources | |||||||||||||||||
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N/A |
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| Professional Resources | |||||||||||||||||
| 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.