ISTODAX vs ZOLINZA

Independent side-by-side comparison.

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

Possible drug interaction. ISTODAX and ZOLINZA 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	ISTODAX	ZOLINZA
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	ROMIDEPSIN	VORINOSTAT
Manufacturer	Bristol-Myers	Msd Sub Merck
Dosage forms	Kit	Capsule
Drug class	Histone Deacetylase Inhibitor	—
Boxed warning	None	None
Treats	Cutaneous T-Cell Lymphoma, Peripheral T-Cell Lymphoma	Cutaneous T-Cell Lymphoma

istodax zolinza

Rating

New

Pharmacy pays

—

Type

Active ingredient

ROMIDEPSIN

VORINOSTAT

Manufacturer

Bristol-Myers

Msd Sub Merck

Dosage forms

Kit

Capsule

Drug class

Histone Deacetylase Inhibitor

—

Boxed warning

None

Treats

Cutaneous T-Cell Lymphoma, Peripheral T-Cell Lymphoma

Cutaneous T-Cell Lymphoma

Frequently asked questions

What is the difference between Istodax and Zolinza?

Istodax contains Romidepsin, while Zolinza contains Vorinostat — 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.