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Preop acetaminophen IV

AdventHealth · FDA-approved active Small molecule ✓ Verified Jun 2026

Preop acetaminophen IV is a Analgesic and antipyretic (non-NSAID) Small molecule drug developed by AdventHealth. It is currently FDA-approved for Preoperative analgesia and fever reduction, Postoperative pain management. Also known as: Ofirmev.

Acetaminophen reduces pain and fever by inhibiting prostaglandin synthesis in the central nervous system.

Preop acetaminophen IV is used in multimodal analgesic approaches for various conditions, including breast cancer, opioid use, shoulder osteoarthritis, and avascular necrosis. It is administered as a small molecule, either through intravenous or oral routes, as part of an ERAS pathway or as Ofirmev.

At a glance

Generic namePreop acetaminophen IV
Also known asOfirmev
SponsorAdventHealth
Drug classAnalgesic and antipyretic (non-NSAID)
TargetCyclooxygenase (COX) enzymes
ModalitySmall molecule
Therapeutic areaPain Management
PhaseFDA-approved

Mechanism of action

Acetaminophen works primarily through inhibition of cyclooxygenase (COX) enzymes in the brain and spinal cord, reducing the production of prostaglandins that mediate pain and fever signaling. The intravenous formulation provides rapid systemic delivery for perioperative pain management. It is commonly used as a non-opioid analgesic in the preoperative setting to reduce postoperative pain and opioid requirements.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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Frequently asked questions about Preop acetaminophen IV

What is Preop acetaminophen IV?

Preop acetaminophen IV is a Analgesic and antipyretic (non-NSAID) drug developed by AdventHealth, indicated for Preoperative analgesia and fever reduction, Postoperative pain management.

How does Preop acetaminophen IV work?

Acetaminophen reduces pain and fever by inhibiting prostaglandin synthesis in the central nervous system.

What is Preop acetaminophen IV used for?

Preop acetaminophen IV is indicated for Preoperative analgesia and fever reduction, Postoperative pain management.

Who makes Preop acetaminophen IV?

Preop acetaminophen IV is developed and marketed by AdventHealth (see full AdventHealth pipeline at /company/adventhealth).

Is Preop acetaminophen IV also known as anything else?

Preop acetaminophen IV is also known as Ofirmev.

What drug class is Preop acetaminophen IV in?

Preop acetaminophen IV belongs to the Analgesic and antipyretic (non-NSAID) class. See all Analgesic and antipyretic (non-NSAID) drugs at /class/analgesic-and-antipyretic-non-nsaid.

What development phase is Preop acetaminophen IV in?

Preop acetaminophen IV is FDA-approved (marketed).

What are the side effects of Preop acetaminophen IV?

Common side effects of Preop acetaminophen IV include Hepatotoxicity (at high doses), Hypersensitivity reactions, Infusion site reactions.

What does Preop acetaminophen IV target?

Preop acetaminophen IV targets Cyclooxygenase (COX) enzymes and is a Analgesic and antipyretic (non-NSAID).

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing