A 64-year-old male asked:
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what is the difference between tyrosine and synthroid (thyroxine)?

1 doctor answer
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--synthroid treats hypothyroidism, tyrosine does not.
Answered on May 21, 2018
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Related questions:

A 47-year-old member asked:
Dr. David Geffner
53 years experience Endocrinology
Sure: Use l-thyroxine (such as synthroid) if you are hypothyroid, but why are you wasting money on tyrosine.
A 48-year-old male asked:
Dr. Stuart Hickerson
31 years experience Family Medicine
L-tyrosine: This amino acid is one of the basic amino acids your thyroid uses to make thyroid hormone. If you are taking synthroid this can lead to excess thyroid ... Read More
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1 thank
A 32-year-old male asked:
Dr. Michael Kleerekoper
A Verified Doctor answered
A US doctor answered Learn more
L-tyrosine: It should not harm you but before you take it please contact your thyroid doctor. Regarding mood - if the doctor says no do not take it. In that cas ... Read More
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A 46-year-old member asked:
Dr. Philip Kern
42 years experience Endocrinology
Yes if needed: An increase in dose of synthroid, (thyroxine) even a small increase, can certainly normalize your blood levels, and many people can "feel" the differe ... Read More
1
1 thank

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