NITYR vs ORFADIN

Independent side-by-side comparison.

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

Attribute	NITYR	ORFADIN
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	NITISINONE	NITISINONE
Manufacturer	Cycle	Swedish Orphan
Dosage forms	Tablet	Capsule, Suspension
Drug class	4-Hydroxyphenyl-Pyruvate Dioxygenase Inhibitor	4-Hydroxyphenyl-Pyruvate Dioxygenase Inhibitor
Boxed warning	None	None
Half-life	about 54 hours (mean terminal half-life)	about 54 hours (mean terminal half-life)
Treats	Tyrosinemias	Tyrosinemias

nityr orfadin

Rating

New

Pharmacy pays

—

Type

Active ingredient

NITISINONE

Manufacturer

Cycle

Swedish Orphan

Dosage forms

Tablet

Capsule, Suspension

Drug class

4-Hydroxyphenyl-Pyruvate Dioxygenase Inhibitor

Boxed warning

None

Half-life

about 54 hours (mean terminal half-life)

Treats

Tyrosinemias

Frequently asked questions

What is the difference between Nityr and Orfadin?

Both Nityr and Orfadin share the active ingredient Nitisinone.

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.