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Two medicines, side by side

Hydromorphone vs morphine

Hydromorphone and morphine are both labeled for pain. Drugs@FDA records approvals of hydromorphone since 1984 and of morphine since 1984. Pharmacies paid $0.219 per hydromorphone 4 mg tablet 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: Hydromorphone, “Hydromorphone is a full opioid agonist and is relatively selective for the mu-opioid receptor, although it can bind to other opioid receptors at higher doses.”; 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 hydromorphone FDA label on DailyMed (effective May 14, 2026); the morphine FDA label on DailyMed (effective July 13, 2026).

Highlights of the hydromorphone record

Hydromorphone (Dilaudid) · label of May 14, 2026

Boxed warning

SERIOUS AND LIFE-THREATENING RISKS FROM USE OF HYDROMORPHONE HYDROCHLORIDE WARNING: SERIOUS AND LIFE-THREATENING RISKS FROM USE OF HYDROMORPHONE HYDROCHLORIDE See full prescribing information for complete boxed warning. Ensure accuracy when prescribing, dispensing, and administering hydromorphone hydrochloride oral solution. Dosing errors due to confusion between mg and mL can result in accidental overdose and death.

Used for

From the label: indications

Hydromorphone hydrochloride oral solution and hydromorphone hydrochloride tablets are indicated for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate. […]

On the market

Earliest approval on file
January 11, 1984
Generic labelers
13 labelers
Pharmacy cost
$0.219 per tablet

Supply and safety

Shortage
In shortage
Recalls
30

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 (Hydromorphone label of May 14, 2026, Morphine label of July 13, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do hydromorphone and morphine differ on the record?

How each works, in its label's words: Hydromorphone, “Hydromorphone is a full opioid agonist and is relatively selective for the mu-opioid receptor, although it can bind to other opioid receptors at higher doses.”; 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: Hydromorphone, “The terminal elimination half-life of hydromorphone after an intravenous dose is about 2.3 hours.”; 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: hydromorphone since 1995; morphine since 1986 (Drugs@FDA).

HydromorphoneMorphine
Labeled forPainPain
Pharmacologic classOpioid AgonistOpioid Agonist
How it works (label)Hydromorphone is a full opioid agonist and is relatively selective for the mu-opioid receptor, although it can bind to other opioid receptors at higher doses. The principal therapeutic action of hydromorphone is analgesia.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)The terminal elimination half-life of hydromorphone after an intravenous dose is about 2.3 hours.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)January 11, 1984September 18, 1984
First generic approvedAugust 23, 1995October 7, 1986
Generic labelers (NDC)13 labelers22 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.219 per tablet (Hydromorphone 4 mg tablet)$0.226 per tablet (Morphine sulfate ir 15 mg tablet)
12-month price change+11%-12%
Boxed warningYesYes
Shortage nowIn shortageIn shortage
Recalls recorded3066
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)91,453120,591
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)

Do their labels mention each other?

Hydromorphone label, warnings and precautions

Patients considered opioid tolerant are those who are taking at least 60 mg oral morphine/day, 25 mcg transdermal fentanyl/hour, 30 mg oral oxycodone/day, 8 mg oral hydromorphone/day, 25 mg oral oxymorphone/day, or an equianalgesic dose of another opioid for one week or longer.

Source: FDA drug labels via openFDA

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

Hydromorphone label, warnings and precautions

Risks from Concomitant Use with Benzodiazepines or Other CNS Depressants Profound sedation, respiratory depression, coma, and death may result from the concomitant use of hydromorphone hydrochloride oral solution and hydromorphone hydrochloride tablets with benzodiazepines and/or other CNS depressants, including alcohol (e.g., non-benzodiazepine sedatives/hypnotics, anxiolytics, tranquilizers, muscle relaxants …

Source: FDA drug labels via openFDA

What next?

Alternatives to hydromorphone
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