MYSOLINE vs TRIZIVIR

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 8, 2026·How we rate

Possible drug interaction. MYSOLINE and TRIZIVIR 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	TRIZIVIR
Rating	74/100	New
Pharmacy pays	~$2.89 /30	~$19.25 /30
Type	RX	RX
Active ingredient	PRIMIDONE	ABACAVIR SULFATE AND LAMIVUDINE AND ZIDOVUDINE
Manufacturer	Valeant Pharm Intl	Viiv Hlthcare
Dosage forms	Tablet	Tablet
Drug class	Anti-Epileptic Agent	—
Boxed warning	None	None
Treats	Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor	—

mysoline trizivir

Rating

74/100

New

Pharmacy pays

~$2.89 /30

~$19.25 /30

Type

Active ingredient

PRIMIDONE

ABACAVIR SULFATE AND LAMIVUDINE AND ZIDOVUDINE

Manufacturer

Valeant Pharm Intl

Viiv Hlthcare

Dosage forms

Tablet

Drug class

Anti-Epileptic Agent

—

Boxed warning

None

Treats

Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

—

Frequently asked questions

Which is cheaper, Mysoline or Trizivir?

Mysoline costs pharmacies less to acquire — about $2.89 vs $19.25 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Mysoline and Trizivir?

Mysoline contains Primidone, while Trizivir contains Abacavir Sulfate and Lamivudine and Zidovudine — 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.