MYSOLINE vs PREVPAC (COPACKAGED)

Independent side-by-side comparison.

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

Possible drug interaction. MYSOLINE and PREVPAC (COPACKAGED) 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	PREVPAC (COPACKAGED)
Rating	74/100	New
Pharmacy pays	~$2.89 /30	$0.04 /mL
Type	RX	RX
Active ingredient	PRIMIDONE	AMOXICILLIN AND CLARITHROMYCIN AND LANSOPRAZOLE
Manufacturer	Valeant Pharm Intl	Takeda Pharms USA
Dosage forms	Tablet	Capsule, Tablet, Oral pellets
Drug class	Anti-Epileptic Agent	—
Boxed warning	None	None
Half-life	—	about 3 to 4 hours at 250 mg, rising to 5 to 7 hours at 500 mg (dose-dependent)
Treats	Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor	—

mysoline prevpac (copackaged)

Rating

74/100

New

Pharmacy pays

~$2.89 /30

$0.04 /mL

Type

Active ingredient

PRIMIDONE

AMOXICILLIN AND CLARITHROMYCIN AND LANSOPRAZOLE

Manufacturer

Valeant Pharm Intl

Takeda Pharms USA

Dosage forms

Tablet

Capsule, Tablet, Oral pellets

Drug class

Anti-Epileptic Agent

—

Boxed warning

None

Half-life

—

about 3 to 4 hours at 250 mg, rising to 5 to 7 hours at 500 mg (dose-dependent)

Treats

Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

—

Frequently asked questions

What is the difference between Mysoline and Prevpac (Copackaged)?

Mysoline contains Primidone, while Prevpac (Copackaged) contains Amoxicillin and Clarithromycin and Lansoprazole — 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.