ERMEZA vs SYNTHROID

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Attribute	ERMEZA	SYNTHROID
Rating	66/100	70/100
Pharmacy pays	~$1.83 /30	~$1.83 /30
Type	RX	RX
Active ingredient	LEVOTHYROXINE SODIUM	LEVOTHYROXINE SODIUM
Manufacturer	Mylan	Abbvie
Dosage forms	Solution	Tablet
Drug class	L-Thyroxine	L-Thyroxine
Boxed warning	None	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

ermeza synthroid

Rating

66/100

70/100

Pharmacy pays

~$1.83 /30

Type

Active ingredient

LEVOTHYROXINE SODIUM

Manufacturer

Mylan

Abbvie

Dosage forms

Solution

Tablet

Drug class

L-Thyroxine

Boxed warning

None

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, Ermeza or Synthroid?

By our independent rating, Synthroid scores higher — 3.5 vs 3.3 out of 5 for Ermeza. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Ermeza or Synthroid?

Pharmacies pay about the same to acquire either one — roughly $1.83 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 Ermeza and Synthroid?

Both Ermeza and Synthroid 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.