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ALREX vs FML

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 18, 2026·How we rate

Possible drug interaction. ALREX and FML 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.

Rating

New
72/100

Pharmacy pays

$19.51 /mL
$12.87 /mL

Type

RX
RX

Active ingredient

LOTEPREDNOL ETABONATE
FLUOROMETHOLONE

Dosage forms

Drops
Drops

Drug class

Corticosteroid
Corticosteroid

Boxed warning

None
None

Treats

Allergic Conjunctivitis, Bacterial Conjunctivitis, Viral Conjunctivitis
Conjunctivitis, Inflammation, Keratitis

Frequently asked questions

Which is cheaper, Alrex or Fml?

Fml costs pharmacies less to acquire — about $12.87 vs $19.51 per ml, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Alrex and Fml?

Alrex contains Loteprednol Etabonate, while Fml contains Fluorometholone — 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.