ALIMTA vs OTREXUP PFS

Independent side-by-side comparison.

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

Possible drug interaction. ALIMTA and OTREXUP PFS 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	ALIMTA	OTREXUP PFS
Rating	New	New
Pharmacy pays	—	~$4.92 /30
Type	RX	RX
Active ingredient	PEMETREXED DISODIUM	METHOTREXATE
Manufacturer	Lilly	Assertio Speclty
Dosage forms	Injectable	Injectable
Drug class	Folate Analog Metabolic Inhibitor	Folate Analog Metabolic Inhibitor
Boxed warning	None	Boxed warning
Half-life	—	about 3 to 10 hours
Treats	Non-Small-Cell Lung Carcinoma, Mesothelial Neoplasms	Juvenile Arthritis, Rheumatoid Arthritis, Breast Neoplasms

alimta otrexup pfs

Rating

New

Pharmacy pays

—

~$4.92 /30

Type

Active ingredient

PEMETREXED DISODIUM

METHOTREXATE

Manufacturer

Lilly

Assertio Speclty

Dosage forms

Injectable

Drug class

Folate Analog Metabolic Inhibitor

Boxed warning

None

Boxed warning

Half-life

—

about 3 to 10 hours

Treats

Non-Small-Cell Lung Carcinoma, Mesothelial Neoplasms

Juvenile Arthritis, Rheumatoid Arthritis, Breast Neoplasms

Frequently asked questions

What is the difference between Alimta and Otrexup Pfs?

Alimta contains Pemetrexed Disodium, while Otrexup Pfs contains Methotrexate — 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.