SELARSDI vs STELARA

Independent side-by-side comparison.

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

Possible drug interaction. SELARSDI and STELARA 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	SELARSDI	STELARA
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	USTEKINUMAB-AEKN	USTEKINUMAB
Manufacturer	Alvotech USA Inc	Janssen Biotech
Dosage forms	Injectable	Injectable
Drug class	Interleukin-12 Antagonist	Interleukin-12 Antagonist
Boxed warning	None	None
Treats	Ulcerative Colitis, Crohn Disease, Psoriasis	Ulcerative Colitis, Crohn Disease, Psoriasis

selarsdi stelara

Rating

New

Pharmacy pays

—

Type

Active ingredient

USTEKINUMAB-AEKN

USTEKINUMAB

Manufacturer

Alvotech USA Inc

Janssen Biotech

Dosage forms

Injectable

Drug class

Interleukin-12 Antagonist

Boxed warning

None

Treats

Ulcerative Colitis, Crohn Disease, Psoriasis

Frequently asked questions

What is the difference between Selarsdi and Stelara?

Selarsdi contains Ustekinumab-Aekn, while Stelara contains Ustekinumab — 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.