A 50-year-old female asked:
Disclaimer

i find a big difference since i changed from synthroid (thyroxine) to eltroxin... big weight gain, tired all the time etc.! dr says they both do the exact same?

1 doctor answer
Dr. David Sneid
41 years experience Endocrinology
Reformulated: Eltroxin has been reformulated and may not have the same potency it did before. You should never change brands of thyroid replacement without getting your levels carefully checked 6 and 12 weeks after changing.
Answered on Aug 1, 2018
1
1 thank

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month

Related questions:

A 54-year-old female asked:
Dr. James Ferguson
46 years experience Pediatrics
Relax: The two meds are the same thing at the same dose. One may be labeled differently or be a generic. It is confusing why you think your meds were really ... Read More
1
1 thank
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.
1
1 thank
A female asked:
Dr. Prithvi Sawh
30 years experience Pediatrics
Too short of time: Changing to a slightly lower dose will take time to stabilize thyroid hormone levels. I doubt whether 3 days would be sufficient to change levels that ... Read More
2
2 thanks
A 31-year-old member asked:
Dr. David Sneid
41 years experience Endocrinology
They are: Essentially the same, but there will be minor differences in potency between the two in any given individual. That's why you don't want to use generic ... Read More

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month