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

Treg Therapy in Subclinical Inflammation in Kidney Transplantation

Phase 1
Completed
Conditions
Renal Transplant
Adult Living Donor Kidney Transplant Recipients
Kidney Transplant
Living Kidney Donor
Interventions
Biological: Polyclonal Regulatory T Cells
Drug: Tacrolimus
Drug: Mycophenolate mofetil
Drug: Everolimus
Drug: Mycophenolic acid
Drug: Acetaminophen
Drug: Diphenhydramine
Procedure: Biopsy, Kidney
Procedure: Blood Draw
Procedure: Leukapheresis
Procedure: IS regimen conversion
First Posted Date
2016-03-17
Last Posted Date
2024-10-07
Lead Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Target Recruit Count
32
Registration Number
NCT02711826
Locations
🇺🇸

University of California at San Francisco, San Francisco, California, United States

🇺🇸

University of Alabama, Birmingham, Birmingham, Alabama, United States

🇺🇸

University of Colorado Health Transplant Center - Anschutz, Aurora, Colorado, United States

and more 3 locations

Paracetamol Versus Placebo in Conjunction With Strong Opioids for Cancer Pain

Not Applicable
Terminated
Conditions
Pain
Interventions
Drug: Placebo
Drug: Paracetamol
First Posted Date
2016-03-11
Last Posted Date
2019-09-27
Lead Sponsor
University of Edinburgh
Target Recruit Count
34
Registration Number
NCT02706769
Locations
🇬🇧

Western General Hospital, Edinburgh, United Kingdom

Single Dose Preoperative Gabapentin Use in Minimally Invasive Hysterectomy for Acute Pain Management

Phase 4
Completed
Conditions
Pain, Postoperative
Interventions
First Posted Date
2016-03-09
Last Posted Date
2020-05-20
Lead Sponsor
Christiana Care Health Services
Target Recruit Count
137
Registration Number
NCT02703259
Locations
🇺🇸

Christiana Care Health System, Newark, Delaware, United States

Post-op Acetaminophen vs NSAID Use on Lumbar Spinal Fusion Outcomes

Not Applicable
Completed
Conditions
Lumbar Disc Disease
Lumbar Osteoarthritis
Spinal Stenosis
Spondylosis
Interventions
First Posted Date
2016-03-07
Last Posted Date
2023-07-10
Lead Sponsor
Hospital for Special Surgery, New York
Target Recruit Count
178
Registration Number
NCT02700451
Locations
🇺🇸

Hospital for Special Surgery, New York, New York, United States

Perineural Low-dose Dexamethasone Added to Infraclavicular Block Anesthesia

Phase 3
Completed
Conditions
Postoperative Pain
Interventions
First Posted Date
2016-03-04
Last Posted Date
2020-08-20
Lead Sponsor
Foisor Orthopedics Clinical Hospital
Target Recruit Count
180
Registration Number
NCT02698995
Locations
🇷🇴

Foisor Orthopedic Clinical Hospital, Bucharest, Romania

Preoperative Cesarean Section Intravenous Acetaminophen and Postoperative Pain Control

Phase 1
Conditions
Complications; Cesarean Section
Interventions
Drug: Acetaminophen
Drug: Placebo
First Posted Date
2016-02-29
Last Posted Date
2017-04-19
Lead Sponsor
University of Tennessee Graduate School of Medicine
Target Recruit Count
200
Registration Number
NCT02694653

Transversus Abdominis Plane Block Versus Wound Infiltration for Postcesarean Analgesia

Not Applicable
Completed
Conditions
Postcesarean Analgesia
Interventions
Procedure: Spinal anesthesia
Drug: Intrathecal bupivacaine
Drug: Intrathecal fentanyl
Procedure: Cesarean delivery
Procedure: Wound infiltration
Procedure: Transversus abdominis plane block
Procedure: Sham procedure
Drug: Paracetamol
Drug: Ketorolac
Procedure: Fentanyl patient-controlled analgesia
First Posted Date
2016-02-25
Last Posted Date
2018-10-31
Lead Sponsor
Mansoura University
Target Recruit Count
80
Registration Number
NCT02691572
Locations
🇪🇬

Department of Anesthesia, Mansoura University Hospitals, Mansoura, Dakahlia, Egypt

Delirium in Elderly Patients With Trauma of the Hip

First Posted Date
2016-02-23
Last Posted Date
2023-08-04
Lead Sponsor
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Target Recruit Count
239
Registration Number
NCT02689024
Locations
🇳🇱

Meander Medical Center, Amersfoort, Netherlands

🇳🇱

VU Medical Center, Amsterdam, Netherlands

🇳🇱

Academic Medical Center, Amsterdam, Netherlands

and more 2 locations

Epidural Versus Wound Infusion Plus Morphine Bolus in Open Abdominal Aortic Aneurysm Repair

First Posted Date
2016-02-09
Last Posted Date
2016-02-09
Lead Sponsor
University of Genova
Target Recruit Count
51
Registration Number
NCT02677532
Locations
🇮🇹

UO Anestesia e Terapia Intensiva, IRCCS AOU San-Martino IST, Genova, Italy

Correlation Between Acute Analgesia and Long-Term Function Following Ankle Injuries

Phase 4
Completed
Conditions
Ligament Injury
Interventions
First Posted Date
2016-01-29
Last Posted Date
2024-02-12
Lead Sponsor
Canadian Department of National Defense
Target Recruit Count
168
Registration Number
NCT02667730
Locations
🇨🇦

2 Fd Amb medical clinic, Petawawa, Ontario, Canada

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