MYSOLINE vs QUADRAMET

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 6, 2026·How we rate

Possible drug interaction. MYSOLINE and QUADRAMET 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	QUADRAMET
Rating	74/100	New
Pharmacy pays	~$2.89 /30	—
Type	RX	RX
Active ingredient	PRIMIDONE	SAMARIUM SM-153 LEXIDRONAM PENTASODIUM
Manufacturer	Valeant Pharm Intl	Lantheus Medical
Dosage forms	Tablet	Injectable
Drug class	Anti-Epileptic Agent	—
Boxed warning	None	None
Treats	Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor	—

mysoline quadramet

Rating

74/100

New

Pharmacy pays

~$2.89 /30

—

Type

Active ingredient

PRIMIDONE

SAMARIUM SM-153 LEXIDRONAM PENTASODIUM

Manufacturer

Valeant Pharm Intl

Lantheus Medical

Dosage forms

Tablet

Injectable

Drug class

Anti-Epileptic Agent

—

Boxed warning

None

Treats

Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

—

Frequently asked questions

What is the difference between Mysoline and Quadramet?

Mysoline contains Primidone, while Quadramet contains Samarium Sm-153 Lexidronam Pentasodium — 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.