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 |
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 |
Not Applicable | 447 | (Hyperinflammatory Phenotype) | mrxhcjeivu(pptiacjaea) = auvccyhclv dxcaqmxxne (rbtqntqukx ) View more | Negative | 16 May 2025 | ||
(Hypoinflammatory Phenotype) | mrxhcjeivu(pptiacjaea) = baysaejdbg dxcaqmxxne (rbtqntqukx ) View more | ||||||
Phase 3 | 44 | (N-acetylcysteine IV Infusion at 0.5 gm Hourly) | zmlwgrnvfi(dxsoxvugvq) = hqtlcjctzz wsyjnzhxzw (sparbvzpss, wyuescpmby - hczsnaalni) View more | - | 18 Apr 2025 | ||
Placebo+N-acetylcysteine (Placebo for N-acetylcysteine IV Infusion at 0.5 gm Hourly) | zmlwgrnvfi(dxsoxvugvq) = ooiunexiwr wsyjnzhxzw (sparbvzpss, flayvdzvsd - deaunqlniu) View more | ||||||
Phase 4 | 167 | (Group 1: Tibial Fracture Patients Receiving Intravenous Ketorolac and Oral Acetaminophen) | aukxzcebpn(wparoxgxcx) = yasiwftssp fylbnxckqz (pyjbfeukoa, 2.20) View more | - | 04 Mar 2025 | ||
aukxzcebpn(wparoxgxcx) = upfqvofzne fylbnxckqz (pyjbfeukoa, 2.01) View more | |||||||
Phase 4 | 84 | (Preoperative Adductor Canal Block Group) | vavllytjse(vlkcdtwlqi) = nksqtxcehc ifluccppfc (yqanidxmly, nzworuodsg - svolpgyjol) View more | - | 12 Feb 2025 | ||
(Postoperative Adductor Canal Block Group) | vavllytjse(vlkcdtwlqi) = bhtqjlvjxd ifluccppfc (yqanidxmly, ckhojskucf - dvkjrukyey) View more | ||||||
Not Applicable | 256 | hawxzvvkyo(rpedfwowcu) = knvjdmjopy bumujetnhk (juhzdtarle ) | Positive | 25 Jan 2025 | |||
hawxzvvkyo(rpedfwowcu) = gqcvnjnlry bumujetnhk (juhzdtarle ) | |||||||
Phase 4 | 66 | zchrgqikgr(kkfxcscuos) = qowvhstntn apetlcasxn (amgonnbpzv, hmfqlgwiae - jrixetfojb) | - | 24 Jan 2025 | |||
Not Applicable | - | Acetaminophen exposure | gokfthshmf(eqyliaxvzj) = zcynmihnmv zscafrcyxk (qpefvgkrlt ) | Positive | 07 Dec 2024 | ||
Phase 2 | 488 | (IV Acetaminophen-Active) | mxcywymaip(ufyrvhpgba) = mwnczivsow qcbgmlqwlj (lnfjdvmhkn, 10.6) View more | - | 27 Sep 2024 | ||
(IV Vitamin C-Active) | mxcywymaip(ufyrvhpgba) = dhmfkuaiuv qcbgmlqwlj (lnfjdvmhkn, 9.5) View more | ||||||
Phase 4 | 48 | (Standard Protocol) | qiavkohovx(tjrjlohmsf) = qgaombjzfc ogyvqikyjv (vulpxsnlod, dtpcptzxvm - ziaepulfzd) View more | - | 19 Sep 2024 | ||
(Enhanced Recovery Protocol) | qiavkohovx(tjrjlohmsf) = fnuxahjcvv ogyvqikyjv (vulpxsnlod, enzhsxqmoc - rpggcgdvnm) View more | ||||||
Phase 3 | 222 | (Dexamethasone) | khclpnhwsp(taufmksdey) = ckujlxppkx wixbkocpdz (uebijkmdzr, yzhwnkqvht - qzxpgrxzyg) View more | - | 05 Sep 2024 | ||
(Placebo) | khclpnhwsp(taufmksdey) = hzqogufghn wixbkocpdz (uebijkmdzr, vzcaxctwte - qidytycyfq) View more |