KOSELUGO vs SIROLIMUS

Independent side-by-side comparison.

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

Possible drug interaction. KOSELUGO and SIROLIMUS 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	KOSELUGO	SIROLIMUS
Rating	70/100	66/100
Pharmacy pays	—	~$48.61 /30
Type	RX	RX
Active ingredient	SELUMETINIB SULFATE	SIROLIMUS
Manufacturer	Astrazeneca	Apotex
Dosage forms	Capsule, Powder	Solution
Drug class	Kinase Inhibitor	Kinase Inhibitor
Boxed warning	None	Boxed warning
Treats	Neurofibromatosis 1	Lymphangioleiomyomatosis, Perivascular Epithelioid Cell Neoplasms

koselugo sirolimus

Rating

70/100

66/100

Pharmacy pays

—

~$48.61 /30

Type

Active ingredient

SELUMETINIB SULFATE

SIROLIMUS

Manufacturer

Astrazeneca

Apotex

Dosage forms

Capsule, Powder

Solution

Drug class

Kinase Inhibitor

Boxed warning

None

Boxed warning

Treats

Neurofibromatosis 1

Lymphangioleiomyomatosis, Perivascular Epithelioid Cell Neoplasms

Frequently asked questions

Which is better-rated, Koselugo or Sirolimus?

By our independent rating, Koselugo scores higher — 3.5 vs 3.3 out of 5 for Sirolimus. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Koselugo and Sirolimus?

Koselugo contains Selumetinib Sulfate, while Sirolimus contains Sirolimus — 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.