MYSOLINE vs THYROLAR-0.5

Independent side-by-side comparison.

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

Possible drug interaction. MYSOLINE and THYROLAR-0.5 are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	MYSOLINE	THYROLAR-0.5
Rating	74/100	72/100
Pharmacy pays	~$2.89 /30	—
Type	RX	RX
Active ingredient	PRIMIDONE	LIOTRIX (T4 AND T3)
Manufacturer	Valeant Pharm Intl	Allergan
Dosage forms	Tablet	Tablet
Drug class	Anti-Epileptic Agent	—
Boxed warning	None	None
Treats	Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor	—

mysoline thyrolar-0.5

Rating

74/100

72/100

Pharmacy pays

~$2.89 /30

—

Type

Active ingredient

PRIMIDONE

LIOTRIX (T4 AND T3)

Manufacturer

Valeant Pharm Intl

Allergan

Dosage forms

Tablet

Drug class

Anti-Epileptic Agent

—

Boxed warning

None

Treats

Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

—

Frequently asked questions

Which is better-rated, Mysoline or Thyrolar-0.5?

By our independent rating, Mysoline scores higher — 3.7 vs 3.6 out of 5 for Thyrolar-0.5. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Mysoline and Thyrolar-0.5?

Mysoline contains Primidone, while Thyrolar-0.5 contains Liotrix (T4 and T3) — they have different active ingredients.

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.