Comparing Liothyronine vs Synthroid
| Liothyronine | Synthroid (levothyroxine) |
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| Liothyronine | Synthroid (levothyroxine) |
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Prescription only
Prescribed for Hypothyroidism - After Thyroid Removal, TSH Suppression, Underactive Thyroid, Myxedema, Myxedema Coma, Thyroid Suppression Test. Liothyronine may also be used for purposes not listed... 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)
Hypothyroidism, After Thyroid Removal (Hypothyroidism, Post-Thyroidectomy)
TSH Suppression
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| More about Liothyronine | More about Synthroid (levothyroxine) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Liothyronine has an average rating of 6.7 out of 10 from a total of 98 ratings on Drugs.com. 62% of reviewers reported a positive effect, while 34% 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 Liothyronine side effects |
View all Synthroid 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 Liothyronine prices |
View all Synthroid prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Cytomel, Triostat | 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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49 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 232 drugs are known to interact with Liothyronine:
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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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No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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May 08, 1956 |
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 | |||||||||||||||||
| Patient Resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| 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.