SYNTHROID vs THYRO-TABS

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 7, 2026·How we rate

Attribute	SYNTHROID	THYRO-TABS
Rating	68/100	72/100
Pharmacy pays	~$1.79 /30	~$1.79 /30
Type	RX	RX
Active ingredient	LEVOTHYROXINE SODIUM	LEVOTHYROXINE SODIUM
Manufacturer	Abbvie	Alvogen
Dosage forms	Tablet	Tablet
Drug class	L-Thyroxine	L-Thyroxine
Boxed warning	Boxed warning	Boxed warning
Half-life	about 6 to 7 days in adults with normal thyroid function	about 6 to 7 days in adults with normal thyroid function
Treats	Goiter, Myxedema, Thyroid Neoplasms	Goiter, Myxedema, Thyroid Neoplasms

synthroid thyro-tabs

Rating

68/100

72/100

Pharmacy pays

~$1.79 /30

Type

Active ingredient

LEVOTHYROXINE SODIUM

Manufacturer

Abbvie

Alvogen

Dosage forms

Tablet

Drug class

L-Thyroxine

Boxed warning

Half-life

about 6 to 7 days in adults with normal thyroid function

Treats

Goiter, Myxedema, Thyroid Neoplasms

Frequently asked questions

Which is better-rated, Synthroid or Thyro-Tabs?

By our independent rating, Thyro-Tabs scores higher — 3.6 vs 3.4 out of 5 for Synthroid. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Synthroid or Thyro-Tabs?

Pharmacies pay about the same to acquire either one — roughly $1.79 for a 30-count supply, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Synthroid and Thyro-Tabs?

Both Synthroid and Thyro-Tabs share the active ingredient Levothyroxine Sodium.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.