GLEOSTINE vs KORLYM

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 19, 2026·How we rate

Possible drug interaction. GLEOSTINE and KORLYM 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	GLEOSTINE	KORLYM
Rating	70/100	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	LOMUSTINE	MIFEPRISTONE
Manufacturer	Azurity	Corcept Therap
Dosage forms	Capsule	Tablet
Drug class	Alkylating Drug	Progestin Antagonist
Boxed warning	Boxed warning	Boxed warning
Half-life	about 16 to 48 hours — but note this is the half-life of lomustine's metabolites, not the parent drug	—
Treats	Brain Neoplasms, Colonic Neoplasms, Hodgkin Disease	Brain Neoplasms, Hyperglycemia, Meningeal Neoplasms

gleostine korlym

Rating

70/100

New

Pharmacy pays

—

Type

Active ingredient

LOMUSTINE

MIFEPRISTONE

Manufacturer

Azurity

Corcept Therap

Dosage forms

Capsule

Tablet

Drug class

Alkylating Drug

Progestin Antagonist

Boxed warning

Half-life

about 16 to 48 hours — but note this is the half-life of lomustine's metabolites, not the parent drug

—

Treats

Brain Neoplasms, Colonic Neoplasms, Hodgkin Disease

Brain Neoplasms, Hyperglycemia, Meningeal Neoplasms

Frequently asked questions

What is the difference between Gleostine and Korlym?

Gleostine contains Lomustine, while Korlym contains Mifepristone — 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.