FLUNISOLIDE vs RAYOS

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 12, 2026·How we rate

Possible drug interaction. FLUNISOLIDE and RAYOS 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	FLUNISOLIDE	RAYOS
Rating	72/100	New
Pharmacy pays	$1.88 /mL	~$1.77 /30
Type	RX	RX
Active ingredient	FLUNISOLIDE	PREDNISONE
Manufacturer	Rising	Horizon
Dosage forms	Solution	Tablet, delayed release
Drug class	Corticosteroid	Corticosteroid
Boxed warning	None	None
Half-life	—	roughly 2 to 4 hours (short)
Treats	Asthma, Perennial Allergic Rhinitis	Adrenal Insufficiency, Autoimmune Hemolytic Anemia, Asthma

flunisolide rayos

Rating

72/100

New

Pharmacy pays

$1.88 /mL

~$1.77 /30

Type

Active ingredient

FLUNISOLIDE

PREDNISONE

Manufacturer

Rising

Horizon

Dosage forms

Solution

Tablet, delayed release

Drug class

Corticosteroid

Boxed warning

None

Half-life

—

roughly 2 to 4 hours (short)

Treats

Asthma, Perennial Allergic Rhinitis

Adrenal Insufficiency, Autoimmune Hemolytic Anemia, Asthma

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Frequently asked questions

What is the difference between Flunisolide and Rayos?

Flunisolide contains Flunisolide, while Rayos contains Prednisone — 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.