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is there a big difference between synthroid and levrothoxine

A 36-year-old female asked:
Dr. Nicolas john Thackwray
Specializes in
Ingredient vs Name: Thyroxine is the active ingredient. Eltroxin is the pharmaceutical brand name.
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A 23-year-old female asked:
Dr. Brad Eilerman
19 years experience Endocrinology
Brand vs generic: The active ingredients are the same but the dose content can vary be manufacturer. Since generic brands can be substituted freely, many physicians pr ... Read More
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Dr. David Sneid
40 years experience Endocrinology
Synthroid (thyroxine) better: Synthroid is a brand name t4, levothyroxine is the name of the generic. Many studies have indicated the brand name is more reliable and consistent. Ho ... Read More
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A 64-year-old male asked:
Dr. Saul Hymes
14 years experience Pediatric Infectious Disease
Synthroid (thyroxine): Tyrosine is an amino acid. Synthroid is thyroxine, a hormone based on the amino acid tyrosine but extensively modified. They are two different things- ... Read More
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A 36-year-old member asked:
Dr. Robert Lang
51 years experience Endocrinology
Yes: Synthroid (thyroxine) is used for hypothyroidism (low thyroid.) Methimazole is used for hyperthyroidism (overactive thyroid.).
A 44-year-old female asked:
Dr. Enrique Madrigal-segura
53 years experience Psychiatry
Same med: Levothyroxine is the generic of brand name product Synthroid.
A 40-year-old member asked:
Dr. Michael Kleerekoper
A Verified Doctor answered
A US doctor answered Learn more
Thyroid meds: The difference is mainly in the cost and availability. If cost is not an issue - thyroid meds are not expensive to my knowledge - take what your docto ... Read More
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A 39-year-old member asked:
Dr. Quang Nguyen
Specializes in Endocrinology
Different: They treat different spectrum of thyroid disease. Synthroid (thyroxine) is thyroid hormone so we use it to treat people with low thyroid hormone. Me ... Read More
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A 35-year-old female asked:
Dr. Dan Fisher
26 years experience Internal Medicine
Synthetic vs pig: Synthroid is levothyroxine (t4) produced synthetically. Armour thyroid ( armour like the hot dog) is a mixture of tri iodothyronine (t3) and T4 extr ... Read More
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A 47-year-old member asked:
Dr. Thomas Knecht
A Verified Doctor answered
A US doctor answered Learn more
Only the name: Unithroid, Levoxyl, and Synthroid are all trade names for l-thyroxine (aka levothyroxine). The levothyroxine is the same in all the preps; dyes & ... Read More
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A 40-year-old member asked:
Dr. Demetrios Herodotou
Specializes in Endocrinology
Yes: Thyroxine also known as T4 is the main product of the thyroid gland. Triiodothyronine or t3 (liothyronine) is also a product of the thyroid but most o ... Read More

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