MedPath

Acetaminophen

Generic Name
Acetaminophen
Brand Names
Acephen, Acetadryl, Allzital, Apadaz, Arthriten Inflammatory Pain, Bupap, Butapap, Cetafen, Children's Silapap, Coricidin Hbp Cold & Flu, Darvocet-N, Dayquil Sinex, Diphen, Dolofin, Dologen, Dologesic Reformulated Jun 2016, Duralgina, Dvorah, Endocet, Esgic, Exaprin, Excedrin, Excedrin PM Triple Action, Excedrin Tension Headache, Feverall, Fioricet, Fioricet With Codeine, Goody's Back & Body Pain Relief, Goody's Body Pain, Goody's Extra Strength, Goody's Headache Relief Shot, Goody's PM, Hycet, Legatrin PM, Little Fevers, Lorcet, Lortab, Mapap, Mersyndol, Midol Complete, Midol Cramps & Bodyaches, Nalocet, Norco, Orbivan, Pamprin Max Formula, Pamprin Multi-symptom, Panadol, Pediacare Children's Fever Reducer Pain Reliever, Percocet, Percogesic Reformulated Jan 2011, Pharbetol, Premsyn Pms, Prolate, Rivacocet, Robaxacet, Robaxacet-8, Roxicet, Sudafed PE Sinus Headache, Tactinal, Tencon, Trezix, Triatec, Triatec-30, Triatec-8, Tylenol, Tylenol PM, Tylenol With Codeine, Ultracet, Vanatol, Vanatol S, Vanquish, Xodol, Xolox, Zamicet, Zflex, Zydone
Drug Type
Small Molecule
Chemical Formula
C8H9NO2
CAS Number
103-90-2
Unique Ingredient Identifier
362O9ITL9D
Background

Acetaminophen (paracetamol), also commonly known as Tylenol, is the most commonly taken analgesic worldwide and is recommended as first-line therapy in pain conditions by the World Health Organization (WHO). It is also used for its antipyretic effects, helping to reduce fever. This drug was initially approved by the U.S. FDA in 1951 and is available in a variety of forms including syrup form, regular tablets, effervescent tablets, injection, suppository, and other forms.

Acetaminophen is often found combined with other drugs in more than 600 over the counter (OTC) allergy medications, cold medications, sleep medications, pain relievers, and other products. Confusion about dosing of this drug may be caused by the availability of different formulas, strengths, and dosage instructions for children of different ages. Due to the possibility of fatal overdose and liver failure associated with the incorrect use of acetaminophen, it is important to follow current and available national and manufacturer dosing guidelines while this drug is taken or prescribed.

Indication

In general, acetaminophen is used for the treatment of mild to moderate pain and reduction of fever. It is available over the counter in various forms, the most common being oral forms.

Acetaminophen injection is indicated for the management of mild to moderate pain, the management of moderate to severe pain with adjunctive opioid analgesics, and the reduction of fever.

Because of its low risk of causing allergic reactions, this drug can be administered in patients who are intolerant to salicylates and those with allergic tendencies, including bronchial asthmatics. Specific dosing guidelines should be followed when administering acetaminophen to children.

Associated Conditions
Acute Gouty Arthritis, Acute Musculoskeletal Pain, Allergic Reaction, Allergy to Tree Pollen, Ankylosing Spondylitis (AS), Chills, Cold, Common Cold, Cough, Cough caused by Common Cold, Coughing caused by Flu caused by Influenza, Dyskinesia of the Biliary Tract, Dyskinesia of the Urinary Tract, Febrile Convulsions, Febrile Illness Acute, Fever, Fibromyalgia, Flu caused by Influenza, Headache, Joint dislocations, Menstrual Distress (Dysmenorrhea), Mild pain, Muscle Inflammation, Muscle Injuries, Muscle Spasms, Musculoskeletal Pain, Myalgia, Nasal Congestion, Neuropathic Pain, Osteoarthritis (OA), Pain, Postoperative pain, Premenstrual cramps, Rheumatoid Arthritis, Rhinopharyngitis, Rhinorrhoea, Severe Pain, Sinusitis, Spasms, Spastic Pain of the Gastrointestinal Tract, Sprains, Symptoms Cold, Tension Headache, Toothache, Upper Respiratory Tract Infection, Whiplash Syndrome, Acute Torticollis, Articular inflammation, Cold or flu syndrome, Mild to moderate pain, Minor aches and pains, Minor pain, Moderate Pain, Moderate to severe pain
Associated Therapies
Airway secretion clearance therapy, Anti-spasmodics, Bronchodilation

Interest of Cryotherapy or Cortisone Aerosol Therapy in Early Post-operative Swallowing Disorders Following Total Thyroidectomy

Not Applicable
Completed
Conditions
Thyroidectomy
Post-operative Swallowing Disorders
Interventions
Procedure: thyroidectomy
Drug: cortisone aerosol
Other: cryotherapy
Drug: Dexamethasone acetate
Drug: paracetamol
First Posted Date
2016-08-04
Last Posted Date
2018-12-21
Lead Sponsor
Centre Hospitalier Universitaire Dijon
Target Recruit Count
240
Registration Number
NCT02855866
Locations
🇫🇷

CHU Dijon Bourgogne, Dijon, France

The Impact of Intravenous Anaesthesia on Angiogenesis in Patients With Breast Cancer (TIVA/TCI-BC)

Phase 2
Completed
Conditions
Breast Cancer
Interventions
First Posted Date
2016-07-21
Last Posted Date
2019-10-29
Lead Sponsor
Iuliu Hatieganu University of Medicine and Pharmacy
Target Recruit Count
120
Registration Number
NCT02839668
Locations
🇷🇴

IOCN Prof Dr I chiricuta, Cluj-Napoca, Romania

Comparison of Intravenous Ibuprofen and Paracetamol in Patients With Low Back Pain Presented to the Emergency Department

Phase 4
Conditions
Low Back Pain
Interventions
First Posted Date
2016-07-19
Last Posted Date
2016-07-19
Lead Sponsor
Pamukkale University
Target Recruit Count
200
Registration Number
NCT02836509

Safety of Paracetamol as Antipyretic in Treatment of Dengue Infection in Adults

Not Applicable
Completed
Conditions
Dengue
Transaminitis
Interventions
Drug: Placebo
Drug: Paracetamol
First Posted Date
2016-07-14
Last Posted Date
2019-04-23
Lead Sponsor
Phramongkutklao College of Medicine and Hospital
Target Recruit Count
123
Registration Number
NCT02833584
Locations
🇹🇭

Anandamahidol Hospital, Lopburi, Thailand

🇹🇭

Phramongkutklao College of Medicine and Hospital, Bangkok, Thailand

🇹🇭

Fort Adisorn Hospital, Saraburi, Thailand

Multi-dose Acetaminophen for Patients Undergoing General Anesthesia

Phase 4
Terminated
Conditions
Recovery Following Cholecystectomy
Interventions
Drug: normal saline
Drug: Acetaminophen
First Posted Date
2016-07-14
Last Posted Date
2021-12-09
Lead Sponsor
Rutgers, The State University of New Jersey
Target Recruit Count
88
Registration Number
NCT02832687
Locations
🇺🇸

New Jersey Medical School, Newark, New Jersey, United States

🇺🇸

University Hospital, Newark, New Jersey, United States

🇺🇸

New York Methodist Hospital, Brooklyn, New York, United States

Pain Outcomes After Anterior Cruciate Ligament Reconstruction With Posterior Capsular Marcaine Injection

Not Applicable
Terminated
Conditions
Anesthesia
Interventions
Other: Ice
Drug: Marcaine
Drug: Percocet
Device: Knee Brace and Crutches
First Posted Date
2016-07-11
Last Posted Date
2018-09-05
Lead Sponsor
Cedars-Sinai Medical Center
Target Recruit Count
23
Registration Number
NCT02826551

Evaluation of Ketamine and Multi-modal Analgesics

First Posted Date
2016-06-28
Last Posted Date
2019-07-31
Lead Sponsor
University of Florida
Registration Number
NCT02815111

Comparison of Two Pain-treatment Techniques After Cesarean Section

Phase 4
Completed
Conditions
Cesarean Section
Neuropathic Pain
Pain Management
Interventions
Procedure: TAP (transversus abdominis plane block)
Procedure: QL (quadratus lumborum block)
Drug: Bupivacaine
Device: Needle
Drug: Paracetamol
Drug: Metamizol
Drug: Ketoprofen
Drug: Morphine
First Posted Date
2016-06-17
Last Posted Date
2023-11-28
Lead Sponsor
Michał Borys
Target Recruit Count
232
Registration Number
NCT02804126
Locations
🇵🇱

II Department of Anesthesia and Intensive Care, Lublin, Poland

A Study of ARC-521 Injection in Normal Adult Volunteers and Patients With Chronic Hepatitis B (CHB)

Phase 1
Terminated
Conditions
Hepatitis B
Interventions
Drug: ARC-521 Injection
Other: Placebo
Drug: antihistamine
Drug: acetaminophen
Drug: entecavir
Drug: tenofovir
First Posted Date
2016-06-13
Last Posted Date
2018-09-25
Lead Sponsor
Arrowhead Pharmaceuticals
Target Recruit Count
47
Registration Number
NCT02797522
Locations
🇳🇿

Auckland Clinical Studies Ltd, Grafton, Auckland, New Zealand

Randomized Clinical Trial to Compare the Treatment of Mild Acute Diverticulitis With or Without Antibiotics

Phase 4
Completed
Conditions
Acute Diverticulitis
Interventions
Drug: Ibuprofen
Drug: Acetaminophen
Drug: Amoxicillin/clavulanic acid
First Posted Date
2016-05-30
Last Posted Date
2020-05-14
Lead Sponsor
Corporacion Parc Tauli
Target Recruit Count
480
Registration Number
NCT02785549
Locations
🇪🇸

Corporació Sanitària Parc Taulí, Sabadell, Barcelona, Spain

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