JAKAFI vs OLUMIANT

Independent side-by-side comparison.

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

Possible drug interaction. JAKAFI and OLUMIANT 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	JAKAFI	OLUMIANT
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	RUXOLITINIB PHOSPHATE	BARICITINIB
Manufacturer	Incyte Corp	Eli Lilly and Co
Dosage forms	Tablet	Tablet
Drug class	Janus Kinase Inhibitor	Janus Kinase Inhibitor
Boxed warning	None	Boxed warning
Treats	Polycythemia Vera, Primary Myelofibrosis	Rheumatoid Arthritis

jakafi olumiant

Rating

New

Pharmacy pays

—

Type

Active ingredient

RUXOLITINIB PHOSPHATE

BARICITINIB

Manufacturer

Incyte Corp

Eli Lilly and Co

Dosage forms

Tablet

Drug class

Janus Kinase Inhibitor

Boxed warning

None

Boxed warning

Treats

Polycythemia Vera, Primary Myelofibrosis

Rheumatoid Arthritis

Frequently asked questions

What is the difference between Jakafi and Olumiant?

Jakafi contains Ruxolitinib Phosphate, while Olumiant contains Baricitinib — 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.