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

Intravenous Acetaminophen For Postoperative Pain in the Neonatal Intensive Care Unit

Phase 4
Recruiting
Conditions
Pain, Postoperative
Pain
Interventions
Drug: Placebo
Drug: Acetaminophen
First Posted Date
2023-01-10
Last Posted Date
2023-04-25
Lead Sponsor
McMaster Children's Hospital
Target Recruit Count
60
Registration Number
NCT05678244
Locations
🇨🇦

McMaster Children's Hospital, Hamilton, Ontario, Canada

Analgesic Effect of a New Analgesic Based Gel(Douloff) Versus Oral Paracetamol in Acute Soft Injuries

Phase 1
Not yet recruiting
Conditions
Analgesia
Interventions
Drug: Douloff
Drug: paracetamol
First Posted Date
2022-12-12
Last Posted Date
2023-05-16
Lead Sponsor
University of Monastir
Target Recruit Count
1100
Registration Number
NCT05647681

Post-operative Pain Management in Children With Supracondylar Humerus Fractures

Phase 4
Conditions
Supracondylar Humerus Fracture
Interventions
Drug: Ibuprofen
Drug: Hydrocodone/acetaminophen
Drug: Acetaminophen
First Posted Date
2022-12-07
Last Posted Date
2023-09-13
Lead Sponsor
Baylor College of Medicine
Target Recruit Count
100
Registration Number
NCT05640674
Locations
🇺🇸

Texas Children's Hospital - West Campus, Houston, Texas, United States

🇺🇸

Texas Children's Hospital - Woodlands Campus, Houston, Texas, United States

🇺🇸

Texas Children's Hospital - Main Campus, Houston, Texas, United States

Efficacy of Acetaminophen-ibuprofen Combination on the Postoperative Pain After Thyroidectomy

Not Applicable
Recruiting
Conditions
Thyroid Disease
Interventions
First Posted Date
2022-11-23
Last Posted Date
2022-11-25
Lead Sponsor
The Catholic University of Korea
Target Recruit Count
62
Registration Number
NCT05626010
Locations
🇰🇷

Seoul St. Mary's Hospital, Seoul, Seocho-gu, Korea, Republic of

A Phase 3 Study of F14 for Management of Pain Following Total Knee Replacement

Phase 3
Active, not recruiting
Conditions
Post Operative Pain
Interventions
Drug: F14
Drug: 0.25 % Bupivacaine HCl
Drug: Acetaminophen
Drug: Methocarbamol
First Posted Date
2022-11-03
Last Posted Date
2024-01-31
Lead Sponsor
Arthritis Innovation Corporation
Target Recruit Count
151
Registration Number
NCT05603832
Locations
🇺🇸

Woodland International Research Group, Little Rock, Arkansas, United States

🇺🇸

HD Research - Legent Orthopedic Hospital, Carrollton, Texas, United States

🇺🇸

Phoenix Clinical Research, Tamarac, Florida, United States

and more 4 locations

Effectiveness of Pre-emptive Analgesics on Post-Operative Pain After Stainless Steel Crown Placement On Primary Molars

Phase 4
Completed
Conditions
Post-operative Pain
Interventions
First Posted Date
2022-11-01
Last Posted Date
2023-02-23
Lead Sponsor
Alexandria University
Target Recruit Count
66
Registration Number
NCT05602064
Locations
🇪🇬

Pediatric Dentistry department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt

Opioid-Free Pain Control Regimen Following Robotic Radical Prostatectomy

Phase 2
Recruiting
Conditions
Opioid Use
Pain Management
Prostate Cancer
Interventions
First Posted Date
2022-10-28
Last Posted Date
2024-04-18
Lead Sponsor
Wake Forest University Health Sciences
Target Recruit Count
100
Registration Number
NCT05597878
Locations
🇺🇸

Atrium Health Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, North Carolina, United States

Efficacy and Safety of Acetaminophen in Postoperative Pain Management of Infants

Phase 1
Completed
Conditions
Infant ALL
Acetaminophen
Analgesic
Enhanced Recovery After Surgery
Postoperative Pain
Interventions
First Posted Date
2022-10-04
Last Posted Date
2024-07-10
Lead Sponsor
Nanjing Children's Hospital
Target Recruit Count
220
Registration Number
NCT05564819
Locations
🇨🇳

Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China

Oral vs IV Acetaminophen for Long-bone Fracture in Children

Phase 4
Recruiting
Conditions
Pain
Interventions
First Posted Date
2022-09-28
Last Posted Date
2022-09-28
Lead Sponsor
Dr. Niina Kleiber
Target Recruit Count
20
Registration Number
NCT05557344
Locations
🇨🇦

CHU Sainte-Justine, Montréal, Quebec, Canada

Effect of Perioperative Acetaminophen Dosing on Patients Undergoing Surgical Treatment of Basilar Thumb Arthritis

Phase 4
Terminated
Conditions
Carpometacarpal Osteoarthritis
Interventions
First Posted Date
2022-09-27
Last Posted Date
2024-10-07
Lead Sponsor
Indiana Hand to Shoulder Center
Target Recruit Count
23
Registration Number
NCT05556356
Locations
🇺🇸

Indiana Hand to Shoulder Center, Indianapolis, Indiana, United States

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