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NUCYNTA ER vs SUBLIMAZE PRESERVATIVE FREE

Independent side-by-side comparison.

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

Possible drug interaction. NUCYNTA ER and SUBLIMAZE PRESERVATIVE FREE 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

~$335.93 /30
$9.51 /mL

Type

RX
RX

Active ingredient

TAPENTADOL HYDROCHLORIDE
FENTANYL CITRATE

Dosage forms

Tablet, extended release
Injectable

Drug class

Opioid Agonist
Opioid Agonist

Boxed warning

Half-life

about 5 hours (terminal half-life, on average, after oral administration)

Treats

Pain
Pain

Frequently asked questions

What is the difference between Nucynta ER and Sublimaze Preservative Free?

Nucynta ER contains Tapentadol Hydrochloride, while Sublimaze Preservative Free contains Fentanyl Citrate — 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.