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FENTANYL CITRATE vs MS CONTIN

Independent side-by-side comparison.

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

Possible drug interaction. FENTANYL CITRATE and MS CONTIN 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

68/100
New

Pharmacy pays

$9.51 /mL
$2.61 /mL

Type

RX
RX

Active ingredient

FENTANYL CITRATE
MORPHINE SULFATE

Dosage forms

Injectable
Tablet, extended release

Drug class

Opioid Agonist
Opioid Agonist

Half-life

about 2 hours

Treats

Pain
Dyspnea, Intractable Pain

Frequently asked questions

Which is cheaper, Fentanyl Citrate or Ms Contin?

Ms Contin costs pharmacies less to acquire — about $2.61 vs $9.51 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 Fentanyl Citrate and Ms Contin?

Fentanyl Citrate contains Fentanyl Citrate, while Ms Contin contains Morphine Sulfate — 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.