CLINORIL vs EC-NAPROSYN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 21, 2026·How we rate

Possible drug interaction. CLINORIL and EC-NAPROSYN 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	CLINORIL	EC-NAPROSYN
Rating	70/100	New
Pharmacy pays	~$6.27 /30	$0.06 /mL
Type	RX	RX
Active ingredient	SULINDAC	NAPROXEN
Manufacturer	Merck	Atnahs Pharma US
Dosage forms	Tablet	Tablet, delayed release
Drug class	Nonsteroidal Anti-Inflammatory Drug	Nonsteroidal Anti-Inflammatory Drug
Boxed warning	None	Boxed warning
Half-life	—	about 12 to 17 hours
Treats	Rheumatoid Arthritis, Bursitis, Inflammation	Juvenile Arthritis, Rheumatoid Arthritis, Back Pain

clinoril ec-naprosyn

Rating

70/100

New

Pharmacy pays

~$6.27 /30

$0.06 /mL

Type

Active ingredient

SULINDAC

NAPROXEN

Manufacturer

Merck

Atnahs Pharma US

Dosage forms

Tablet

Tablet, delayed release

Drug class

Nonsteroidal Anti-Inflammatory Drug

Boxed warning

None

Boxed warning

Half-life

—

about 12 to 17 hours

Treats

Rheumatoid Arthritis, Bursitis, Inflammation

Juvenile Arthritis, Rheumatoid Arthritis, Back Pain

Frequently asked questions

What is the difference between Clinoril and Ec-Naprosyn?

Clinoril contains Sulindac, while Ec-Naprosyn contains Naproxen — 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.