Comparing Levothyroxine vs Liothyronine
Levothyroxine | Liothyronine |
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Levothyroxine | Liothyronine |
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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 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 |
Related suggestions Hypothyroidism, After Thyroid Removal (Hypothyroidism, Post-Thyroidectomy)
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More about Levothyroxine | More about Liothyronine | ||||||||||||||||
Ratings & Reviews | |||||||||||||||||
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. |
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. |
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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 Liothyronine side effects |
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Drug Class | |||||||||||||||||
Generic Availability | |||||||||||||||||
Lower cost generic |
Lower cost generic |
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Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Levothyroxine prices |
View all Liothyronine 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 | Cytomel, Triostat | ||||||||||||||||
Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
240 hours |
49 hours |
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CSA Schedule 1 View glossary of CSA 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 239 drugs are known to interact with Levothyroxine:
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A total of 232 drugs are known to interact with Liothyronine:
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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 | |||||||||||||||||
August 21, 2000 |
May 08, 1956 |
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WADA Class View classifications | |||||||||||||||||
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.