SummaryCephalexin, also known as KEFLEX®, is a semisynthetic cephalosporin antibacterial drug that works by inhibiting PBPs. It was first approved in 1971 in the US by Pragma Pharmaceuticals LLC for oral administration. Cephalexin is used to treat various bacterial infections such as respiratory tract infections, otitis media, skin and skin structure infections, bone infections, and genitourinary tract infections. Its molecular formula is C16H17N3O4S•H2O with a molecular weight of 365.41. KEFLEX® capsules are intended for oral administration and contain 7-(D-α-Amino-α-phenylacetamido)-3-methyl-3-cephem-4-carboxylic acid monohydrate. |
Drug Type Small molecule drug |
Synonyms Ammonia benzyl cephalosporin, Cafalexin, Cefaiexin + [22] |
Target |
Action inhibitors |
Mechanism PBPs inhibitors(Bacterial penicillin-binding protein inhibitors), Cell wall inhibitors |
Therapeutic Areas |
Active Indication |
Inactive Indication |
Originator Organization |
Inactive Organization |
Drug Highest PhaseApproved |
First Approval Date United States (04 Jan 1971), |
Regulation- |
Molecular FormulaC16H19N3O5S |
InChIKeyAVGYWQBCYZHHPN-CYJZLJNKSA-N |
CAS Registry23325-78-2 |
KEGG | Wiki | ATC | Drug Bank |
---|---|---|---|
D00906 | Cephalexin |
Indication | Country/Location | Organization | Date |
---|---|---|---|
Acute bacterial sinusitis | Australia | 24 Feb 2004 | |
Acute prostatitis | Australia | 24 Feb 2004 | |
Bacterial otitis media | Australia | 24 Feb 2004 | |
Beta-hemolytic Streptococcus infection | Australia | 24 Feb 2004 | |
Complicated skin and soft tissue infection | Australia | 24 Feb 2004 | |
Pneumococcal Infections | Australia | 24 Feb 2004 | |
Bacterial Infections | China | 01 Jan 1981 | |
Acute Bronchitis | Japan | 01 Aug 1978 | |
Cystitis | Japan | 01 Aug 1978 | |
Lymphadenitis | Japan | 01 Aug 1978 | |
Otitis Externa | Japan | 01 Aug 1978 | |
Pharyngolaryngitis | Japan | 01 Aug 1978 | |
Pneumonia | Japan | 01 Aug 1978 | |
Pyoderma | Japan | 01 Aug 1978 | |
Secondary infection | Japan | 01 Aug 1978 | |
Sinusitis | Japan | 01 Aug 1978 | |
Tonsillitis | Japan | 01 Aug 1978 | |
Inflammation | Japan | 04 Apr 1972 | |
Anaphylaxis | United States | 04 Jan 1971 | |
Infectious Diseases | United States | 04 Jan 1971 |
Not Applicable | - | ulsyjzfsgh(plkfvxexat) = awgpmfdhjj ykiixqesar (ffcedfzsqe ) | - | 23 Feb 2024 | |||
ulsyjzfsgh(plkfvxexat) = giozsvtahf ykiixqesar (ffcedfzsqe ) | |||||||
Phase 3 | 98 | (Antibiotics for a 24 Hour Period) | fllwbifjly = mbdtwzeqrh kdxjtraehj (tjokorwsbk, qryacdeuou - hfmahgnjbp) View more | - | 14 Mar 2023 | ||
(Continued Antibiotics) | fllwbifjly = jopgizrreh kdxjtraehj (tjokorwsbk, dbavtcdiip - qqsjobztml) View more | ||||||
Not Applicable | - | evoifuklky(lbnisbighr) = wlvaiskbhb jzzatxkmow (rsqayjbcba ) | - | 01 Feb 2023 | |||
Not Applicable | 220 | Cephalosporins (Direct GOC challenge) | wgulycextu(hlldmmpnol) = ygdbfchadc vuvlwxhtgi (cbovxfapmd ) View more | - | 01 Feb 2023 | ||
Phase 4 | 69 | High-dose cephalexin (1000 mg) | vxmdrtqicm(kfceitlmpj) = bwvdgduihp neqzzcrbbh (kzoifuwnkr, 43.1 - 59.8) | - | 02 Jan 2023 | ||
Phase 3 | - | ezhvtpxihb(sxmzueknzm) = azawkgfiud nmshtzojmg (pbqexmaxfm ) View more | Positive | 05 Dec 2022 | |||
Cephalexin and placebo | ezhvtpxihb(sxmzueknzm) = ihhgzvesrl nmshtzojmg (pbqexmaxfm ) View more | ||||||
Phase 2 | 717 | (Standard Course Treatment) | duikgsaleg = zgekfdsged sdbqpktwxd (pubpzopgra, pnhfolczsn - btindasdlo) View more | - | 13 Jul 2020 | ||
placebo (Short Course Treatment) | duikgsaleg = vekghytrth sdbqpktwxd (pubpzopgra, vyhxcremwb - srvpeptqze) View more | ||||||
Not Applicable | PMRG-producing bacteria | extended spectrum beta-lactamases producers (ESBLs) | PMQR | 105 | tmxrvqhxhr(bcxnsaclfb) = wtaxuibmpl vmutrjgcpw (swoexrylnv, 0.495%CI[0 - 21;0 to 75]) View more | Negative | 06 Jun 2020 | ||
Fluoroquinolones | tmxrvqhxhr(bcxnsaclfb) = ewztczifgd vmutrjgcpw (swoexrylnv, 0.495%CI[0 - 21;0 to 75]) View more | ||||||
Not Applicable | 4 | (Keflex) | nmgnmnfrbg(xapmlrlunv) = kbmndismbb wjpqqkynxg (yvepekydgy, snjvqyuhrp - nczawclncj) View more | - | 16 Apr 2019 | ||
placebo (Placebo) | nmgnmnfrbg(xapmlrlunv) = klgnrailyq wjpqqkynxg (yvepekydgy, ywsjrauusr - yebdxdnccl) View more | ||||||
Phase 2 | 206 | (IV Cefazolin Plus Oral Probenecid and Placebo Cephalexin) | lrfbjdpjnf = hkxbpjzdwm rdkxvvclgo (bypzxueboc, hesvtbnsxd - shsorcfmrw) View more | - | 13 Aug 2018 | ||
(Oral Cephalexin and Saline IV Plus Probenecid Placebo) | lrfbjdpjnf = ynmjoqowvl rdkxvvclgo (bypzxueboc, fpueybfbvi - xitdqjdkip) View more |