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

An Open-label, Phase 1 Study to Determine the Maximum Tolerated Dose of HLX07,in Patients With Advanced Solid Cancers

Phase 1
Completed
Conditions
Solid Tumour
Interventions
First Posted Date
2016-01-07
Last Posted Date
2019-07-30
Lead Sponsor
Henlix, Inc
Target Recruit Count
19
Registration Number
NCT02648490
Locations
🇺🇸

Henlix, Inc., Fremont, California, United States

🇨🇳

Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan

Spinal Versus Epidural Analgesia in Laparotomic Liver Surgery

Not Applicable
Conditions
Liver Diseases
Liver Neoplasms
Secondary Malignant Neoplasm of Liver
Interventions
Procedure: Spinal analgesia
Procedure: Epidural analgesia
Procedure: Transversus Abdominis Plane block
Procedure: Surgical wound infiltration
Drug: Acetaminophen
Drug: Sufentanil
Drug: Ketorolac
Drug: Ropivacaine
First Posted Date
2016-01-06
Last Posted Date
2016-01-06
Lead Sponsor
Ospedale San Raffaele
Target Recruit Count
40
Registration Number
NCT02647047
Locations
🇮🇹

Ospedale San Raffaele, Milano, MI, Italy

Study of the Effects of ITCA 650 on Gastric Emptying and Interaction of ITCA 650 on 4 Commonly Studied Drugs

Phase 1
Completed
Conditions
Healthy
Interventions
First Posted Date
2015-12-30
Last Posted Date
2017-01-27
Lead Sponsor
Intarcia Therapeutics
Target Recruit Count
33
Registration Number
NCT02641899
Locations
🇺🇸

Quintiles, Overland Park, Kansas, United States

Codeine Plus Paracetamol Versus Placebo for PRK Post-operative Pain

Phase 3
Completed
Conditions
Myopia
Interventions
First Posted Date
2015-12-09
Last Posted Date
2015-12-11
Lead Sponsor
University of Sao Paulo General Hospital
Target Recruit Count
40
Registration Number
NCT02625753
Locations
🇧🇷

Universidade de São Paulo (USP) - Refractive surgery department, São Paulo, Brazil

Transplacental Transfer of Drugs Used in Pregnant Women

Not Applicable
Completed
Conditions
Pregnancy
Interventions
First Posted Date
2015-12-07
Last Posted Date
2017-05-03
Lead Sponsor
University Hospital, Gasthuisberg
Target Recruit Count
250
Registration Number
NCT02622802
Locations
🇧🇪

University Hospital Gasthuisberg, Leuven, Belgium

Premedication Efficacy of Oral Ketorolac and Ketorolac/ Acetaminophen on Post Treatment Pain

Phase 2
Completed
Conditions
Irreversible Pulpitis
Interventions
First Posted Date
2015-11-25
Last Posted Date
2016-09-20
Lead Sponsor
Azad University of Medical Sciences
Target Recruit Count
66
Registration Number
NCT02614118
Locations
🇮🇷

Dental Branch, AZad UMS, Tehran, Iran, Islamic Republic of

Patient-Driven Analgesic Protocol Selection for Post-Cesarean Pain Management

Not Applicable
Completed
Conditions
Postoperative Pain
Interventions
First Posted Date
2015-11-16
Last Posted Date
2018-10-16
Lead Sponsor
Stanford University
Target Recruit Count
160
Registration Number
NCT02605187
Locations
🇺🇸

Lucille Packard Children's Hospital, Palo Alto, California, United States

Intravenous Paracetamol Compared Dexketoprofen for Postoperative Analgesia After Septoplasty

Phase 3
Conditions
Postoperative Pain
Interventions
First Posted Date
2015-11-11
Last Posted Date
2015-11-11
Lead Sponsor
Baskent University
Target Recruit Count
2
Registration Number
NCT02602197

Effect of Premedication on Success of Inferior Alveolar Nerve Block Injection

Phase 2
Completed
Conditions
Irreversible Pulpitis
Interventions
First Posted Date
2015-11-11
Last Posted Date
2016-09-20
Lead Sponsor
Azad University of Medical Sciences
Target Recruit Count
60
Registration Number
NCT02601911
Locations
🇮🇷

Dental Branch, AZad UMS, Tehran, Iran, Islamic Republic of

A Study to Characterize Subcutaneous or Intravenous Alemtuzumab in Patients With Progressive Multiple Sclerosis

Phase 1
Completed
Conditions
Progressive Multiple Sclerosis
Interventions
First Posted Date
2015-10-22
Last Posted Date
2021-03-10
Lead Sponsor
Genzyme, a Sanofi Company
Target Recruit Count
24
Registration Number
NCT02583594
Locations
🇪🇸

Investigational Site Number 724001, Barcelona, Spain

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