ONGENTYS vs TASMAR

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Possible drug interaction. ONGENTYS and TASMAR 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	ONGENTYS	TASMAR
Rating	70/100	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	OPICAPONE	TOLCAPONE
Manufacturer	Amneal	Bausch
Dosage forms	Capsule	Tablet
Drug class	—	—
Boxed warning	None	Boxed warning
Treats	Parkinson Disease	Parkinson Disease

ongentys tasmar

Rating

70/100

New

Pharmacy pays

—

Type

Active ingredient

OPICAPONE

TOLCAPONE

Manufacturer

Amneal

Bausch

Dosage forms

Capsule

Tablet

Drug class

—

Boxed warning

None

Boxed warning

Treats

Parkinson Disease

Frequently asked questions

What is the difference between Ongentys and Tasmar?

Ongentys contains Opicapone, while Tasmar contains Tolcapone — 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.