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Two medicines, side by side

Fentanyl vs morphine

Fentanyl and morphine are both labeled for pain. Drugs@FDA records approvals of fentanyl since 1968 and of morphine since 1984. Pharmacies paid $1.79 per mL (Fentanyl 100 mcg/2 mL vial) and $0.226 per morphine sulfate ir 15 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. How each works, in its label's words: Fentanyl, “Fentanyl Citrate Injection is an opioid agonist, whose principal actions of therapeutic value are analgesia and sedation.”; Morphine, “Morphine is a full opioid agonist is relatively selective for the mu-opioid receptor, although it can bind to other opioid receptors at higher doses.”

Check it at the source: the fentanyl FDA label on DailyMed (effective March 6, 2026); the morphine FDA label on DailyMed (effective July 13, 2026).

Highlights of the fentanyl record

Fentanyl (Sublimaze) · label of March 6, 2026

Boxed warning

SERIOUS AND LIFE-THREATENING RISKS FROM USE OF FENTANYL CITRATE INJECTION Addiction, Abuse, and Misuse Because the use of Fentanyl Citrate Injection exposes patients and other users to the risks of opioid addiction, abuse and misuse, which can lead to overdose and death, assess each patient’s risk prior to prescribing and reassess all patients regularly for the development of these behaviors and conditions [see Warnings and Precautions (5.1) ].

Used for

From the label: indications

Fentanyl Citrate Injection is indicated for: analgesic action of short duration during the anesthetic periods, premedication, induction and maintenance, and in the immediate postoperative period (recovery room) as the need arises. use as a narcotic analgesic supplement in general or regional anesthesia. administration with a neuroleptic as an anesthetic premedication, for the induction of anesthesia and as an […]

On the market

Earliest approval on file
February 19, 1968
Generic labelers
6 labelers
Pharmacy cost
$1.79 per mL

Supply and safety

Shortage
In shortage
Recalls
111

Highlights of the morphine record

Morphine (Duramorph) · label of July 13, 2026

Boxed warning

ADDICTION, ABUSE, AND MISUSE; RISK EVALUATION AND MITIGATION STRATEGY (REMS); LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; NEONATAL OPIOID WITHDRAWAL SYNDROME; and RISKS FROM CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS Addiction, Abuse, and Misuse Morphine sulfate exposes patients and other users to the risks of opioid addiction, abuse, and misuse, which can lead to overdose and death.

Used for

From the label: indications

Morphine sulfate extended-release tablets are indicated for the management of pain severe enough to require daily, around-the-clock, long-term opioid treatment and for which alternative treatment options are inadequate. […]

On the market

Earliest approval on file
September 18, 1984
Generic labelers
22 labelers
Pharmacy cost
$0.226 per tablet

Supply and safety

Shortage
In shortage
Recalls
66

Source: FDA drug labels via openFDA (Fentanyl label of March 6, 2026, Morphine label of July 13, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do fentanyl and morphine differ on the record?

How each works, in its label's words: Fentanyl, “Fentanyl Citrate Injection is an opioid agonist, whose principal actions of therapeutic value are analgesia and sedation.”; Morphine, “Morphine is a full opioid agonist is relatively selective for the mu-opioid receptor, although it can bind to other opioid receptors at higher doses.”

Both are in FDA's class opioid agonists.

Half-life, in each label's words: Fentanyl, “Elimination The terminal elimination half-life is 219 minutes.”; Morphine, “Excretion The elimination of morphine occurs primarily as renal excretion of M3G and its effective half-life after …”

Both labels carry a boxed warning; the records quote them.

Generics: fentanyl since 1990; morphine since 1986 (Drugs@FDA).

FentanylMorphine
Labeled forPainPain
Pharmacologic classOpioid AgonistOpioid Agonist
How it works (label)Fentanyl Citrate Injection is an opioid agonist, whose principal actions of therapeutic value are analgesia and sedation.Morphine is a full opioid agonist is relatively selective for the mu-opioid receptor, although it can bind to other opioid receptors at higher doses. The principal therapeutic action of morphine is analgesia.
Half-life (label)Elimination The terminal elimination half-life is 219 minutes.Excretion The elimination of morphine occurs primarily as renal excretion of M3G and its effective half-life after intravenous administration is normally 2 to 4 hours.
Earliest approval on file (Drugs@FDA)February 19, 1968September 18, 1984
First generic approvedApril 30, 1990October 7, 1986
Generic labelers (NDC)6 labelers22 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$1.79 per mL (Fentanyl 100 mcg/2 mL vial)$0.226 per tablet (Morphine sulfate ir 15 mg tablet)
12-month price change+76%-12%
Boxed warningYesYes
Shortage nowIn shortageIn shortage
Recalls recorded11166
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)114,879120,591
DEA scheduleCIICII

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What do the labels say about using others of their kind?

Fentanyl label, warnings and precautions

Profound sedation, respiratory depression, coma, and death may result from the concomitant use of Fentanyl Citrate Injection with benzodiazepines and/or other CNS depressants, including alcohol (e.g., non-benzodiazepine sedatives/hypnotics, anxiolytics, tranquilizers, muscle relaxants, general anesthetics, antipsychotics, gabapentinoids [gabapentin or pregabalin], and other opioids).

Source: FDA drug labels via openFDA

What next?

Alternatives to fentanyl
every medicine labeled for the same conditions