HERCEPTIN vs HERCESSI

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Possible drug interaction. HERCEPTIN and HERCESSI 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	HERCEPTIN	HERCESSI
Rating	70/100	70/100
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	TRASTUZUMAB	TRASTUZUMAB-STRF
Manufacturer	Genentech Inc	Accord Biopharma Inc.
Dosage forms	Injectable	Injectable
Drug class	Her2/Neu Receptor Antagonist	Her2/Neu Receptor Antagonist
Boxed warning	Boxed warning	None
Treats	Breast Neoplasms, Gastrointestinal Neoplasms, Stomach Neoplasms	Breast Neoplasms, Gastrointestinal Neoplasms, Stomach Neoplasms

herceptin hercessi

Rating

70/100

Pharmacy pays

—

Type

Active ingredient

TRASTUZUMAB

TRASTUZUMAB-STRF

Manufacturer

Genentech Inc

Accord Biopharma Inc.

Dosage forms

Injectable

Drug class

Her2/Neu Receptor Antagonist

Boxed warning

None

Treats

Breast Neoplasms, Gastrointestinal Neoplasms, Stomach Neoplasms

Frequently asked questions

Which is better-rated, Herceptin or Hercessi?

Herceptin and Hercessi are tied at 3.5 out of 5 by our independent rating.

What is the difference between Herceptin and Hercessi?

Herceptin contains Trastuzumab, while Hercessi contains Trastuzumab-Strf — 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.