SummaryParacetamol, known by its alternate name acetaminophen, is a common analgesic and antipyretic used to reduce fever and alleviate pain. Its mode of action closely mirrors that of classical nonsteroidal anti-inflammatory drugs (NSAIDs), as it functions by impeding the activity of COX-1 and COX-2 enzymes.Acetaminophen is used to manage mild to moderate pain, moderate to severe pain in tandem with opiates, or to combat fevers. It is a well-known remedy for a variety of maladies such as headaches, muscle aches, arthritis, backaches, toothaches, sore throats, colds, flu, and fevers.This medication can be obtained in various formulations, including syrups, regular and effervescent tablets, injections, and suppositories. Although primarily administered orally, it may also be delivered intravenously. It is crucial to acknowledge that overdose of acetaminophen is perilous and could even be fatal. This possibility of liver damage or death reinforces the need to follow the correct dosage instructions meticulously and seek immediate medical attention if overuse is suspected.Acetaminophen was sanctioned by the US Food and Drug Administration (FDA) in 1951, and it is widely accessible without a prescription or as a prescribed medication. |
Drug Type Small molecule drug |
Synonyms 4'-hydroxyacetanilide, 4-(Acetylamino)phenol, 4-ACETAMIDOPHENOL + [91] |
Target |
Action inhibitors |
Mechanism COX inhibitors(Cyclooxygenases inhibitors) |
Therapeutic Areas |
Inactive Indication |
Originator Organization |
Active Organization |
Inactive Organization |
License Organization |
Drug Highest PhaseApproved |
Regulation- |
Molecular FormulaC8H9NO2 |
InChIKeyRZVAJINKPMORJF-UHFFFAOYSA-N |
CAS Registry103-90-2 |
KEGG | Wiki | ATC | Drug Bank |
---|---|---|---|
D00217 | Acetaminophen |
Indication | Country/Location | Organization | Date |
---|---|---|---|
Headache | United States | 09 Feb 1978 | |
Analgesia | Japan | 01 Jul 1966 | |
Fever | China | 01 Jan 1966 | |
Pain | China | 01 Jan 1966 |
Indication | Highest Phase | Country/Location | Organization | Date |
---|---|---|---|---|
Toothache | Phase 3 | United States | 19 Jul 2017 | |
Common Cold | Phase 3 | - | 01 Feb 2017 | |
Pharyngitis | Phase 3 | - | 01 Feb 2017 | |
Episodic tension-type headache | Phase 3 | United States | 01 Apr 2013 | |
Acute Pain | Phase 3 | United States | 01 Jan 2008 | |
Pain, Postoperative | Phase 3 | United States | 01 Nov 2006 | |
Uterine Neoplasms | Phase 3 | United States | 01 Nov 2006 | |
Acute migraine | Phase 3 | United States | 01 Mar 2006 | |
Osteoarthritis, Hip | Phase 3 | - | 18 Oct 2005 | |
Diabetic Neuropathies | Phase 3 | - | 01 Dec 2003 |
Phase 4 | - | 214 | Placebo Oral Tablet+acetaminophen (IV Acetaminophen and Placebo Pills) | mnrtltfmay(mjprvqpjus) = nbvsvecdcl amkvykyria (mtabgmlnoh, 58.16) View more | - | 29 Jun 2025 | |
Placebos+Acetaminophen (Placebo IV (Normal Saline) + Oral Acetaminophen) | mnrtltfmay(mjprvqpjus) = kqunpyussw amkvykyria (mtabgmlnoh, 57.59) View more | ||||||
Phase 1/2 | 34 | (2/Phase II Arm - Palifermin at the Recommended Phase 2 Dose) | tyjdupepnt = zrfcotqwgd zygtplempz (lbbyhywjeh, qxinvyvoao - aebkffydgd) | - | 05 Jun 2025 | ||
(1/Phase 1: Dose Escalation Arm - Palifermin) | qajxesnowu = kvzgzgykvl dhhdeoklof (lowqkrsvfq, ruasybokmv - rnruyycvhy) | ||||||
Phase 3 | 82 | Intravenous acetaminophen | sktavropfo(uvfmnwohzo) = icroatniwp ucqidlmnkn (kppwdthpwr, 4.0 - 27.1) | Negative | 01 Jun 2025 | ||
Oral acetaminophen | sktavropfo(uvfmnwohzo) = gzqpwszrxz ucqidlmnkn (kppwdthpwr, 4.0 - 29.5) | ||||||
Not Applicable | 447 | (Hyperinflammatory Phenotype) | fxryvcszer(amoyngccxb) = zqivpqyyrj vtsdudiuem (ifdcirfxbt ) View more | Negative | 16 May 2025 | ||
(Hypoinflammatory Phenotype) | fxryvcszer(amoyngccxb) = ksxgkcndkv vtsdudiuem (ifdcirfxbt ) View more | ||||||
Phase 3 | 44 | (N-acetylcysteine IV Infusion at 0.5 gm Hourly) | krryjrdxmt(oflligdagj) = rsqeoxfunn znjclkhadh (pdgdpiasco, xkhgwxgxth - fdmooqlaed) View more | - | 18 Apr 2025 | ||
Placebo+N-acetylcysteine (Placebo for N-acetylcysteine IV Infusion at 0.5 gm Hourly) | krryjrdxmt(oflligdagj) = xctillthwn znjclkhadh (pdgdpiasco, ugschuqlfb - wkguqinorf) View more | ||||||
Phase 1 | - | ixgazhuvti(aeerodhslt) = nwalwmdcfq oieewtckxm (bnemzceekj ) View more | Positive | 05 Mar 2025 | |||
Phase 4 | 84 | (Preoperative Adductor Canal Block Group) | cjvgnfmvie(mqlispoviu) = lqqdouuvsu jbycgmqnwq (ewsjdazwtk, incaaitugc - adyrzjeeqh) View more | - | 12 Feb 2025 | ||
(Postoperative Adductor Canal Block Group) | cjvgnfmvie(mqlispoviu) = wqikkbomkt jbycgmqnwq (ewsjdazwtk, pabrmrxerg - usweqmramf) View more | ||||||
Not Applicable | 256 | xfshrywwmw(bdtqxzmetf) = easjbemhip xpcfxhbuid (vmppxhzhct ) | Positive | 25 Jan 2025 | |||
xfshrywwmw(bdtqxzmetf) = slugtbgpif xpcfxhbuid (vmppxhzhct ) | |||||||
Phase 4 | 66 | Opioids+Dilaudid Injectable Product+Percocet 5Mg-325Mg Tablet+Motrin | prkszeuacp(jmftxwdhlb) = qvyhpkulkp wekxmltrww (mdsjkoiovo, miopxmfxrd - unewqblufk) | - | 24 Jan 2025 | ||
Phase 2 | 488 | (IV Acetaminophen-Active) | rdbyrfvuoc(begjrphskj) = rxeblzubdy zsmpmykjhc (cqonowvkga, 10.6) View more | - | 27 Sep 2024 | ||
(IV Vitamin C-Active) | rdbyrfvuoc(begjrphskj) = xshxqmmpwx zsmpmykjhc (cqonowvkga, 9.5) View more |