U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry ABSOLUTE
Molecular Formula C21H24N5O8S2.Na
Molecular Weight 561.564
Optical Activity UNSPECIFIED
Defined Stereocenters 4 / 4
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of MEZLOCILLIN SODIUM

SMILES

[Na+].[H][C@]12SC(C)(C)[C@@H](N1C(=O)[C@H]2NC(=O)[C@H](NC(=O)N3CCN(C3=O)S(C)(=O)=O)C4=CC=CC=C4)C([O-])=O

InChI

InChIKey=GTGQRSIMEUWHPA-ZBJAFUORSA-M
InChI=1S/C21H25N5O8S2.Na/c1-21(2)14(18(29)30)26-16(28)13(17(26)35-21)22-15(27)12(11-7-5-4-6-8-11)23-19(31)24-9-10-25(20(24)32)36(3,33)34;/h4-8,12-14,17H,9-10H2,1-3H3,(H,22,27)(H,23,31)(H,29,30);/q;+1/p-1/t12-,13-,14+,17-;/m1./s1

HIDE SMILES / InChI
Bayer developed MEZLOCILLIN (previously known as BAYPEN); it is a semisynthetic ampicillin-derived penicillin. Mezlocillin is a penicillin beta-lactam antibiotic used in the treatment of bacterial infections caused by susceptible, usually gram-positive, organisms. The bactericidal activity of mezlocillin results from the inhibition of cell wall synthesis and is mediated through mezlocillin binding to penicillin binding proteins (PBPs). Mezlocillin is stable against hydrolysis by a variety of beta-lactamases, including penicillinases and cephalosporinases and extended spectrum beta-lactamases. Mezlocillin was poorly absorbed orally and was given either intramuscularly or intravenously. This drug was discontinued in the U.S.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Curative
MEZLIN

Approved Use

Unknown

Launch Date

1981
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
216.6 mg/L
4 g single, intravenous
dose: 4 g
route of administration: Intravenous
experiment type: SINGLE
co-administered:
MEZLOCILLIN serum
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
317 mg/L
5 g single, intravenous
dose: 5 g
route of administration: Intravenous
experiment type: SINGLE
co-administered:
MEZLOCILLIN serum
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
138.84 mg/L
3 g single, intravenous
dose: 3 g
route of administration: Intravenous
experiment type: SINGLE
co-administered:
MEZLOCILLIN serum
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
275 mg × h/L
4 g single, intravenous
dose: 4 g
route of administration: Intravenous
experiment type: SINGLE
co-administered:
MEZLOCILLIN serum
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
403 mg × h/L
5 g single, intravenous
dose: 5 g
route of administration: Intravenous
experiment type: SINGLE
co-administered:
MEZLOCILLIN serum
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
415.2 mg × h/L
3 g single, intravenous
dose: 3 g
route of administration: Intravenous
experiment type: SINGLE
co-administered:
MEZLOCILLIN serum
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
1.32 h
4 g single, intravenous
dose: 4 g
route of administration: Intravenous
experiment type: SINGLE
co-administered:
MEZLOCILLIN serum
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
1.13 h
5 g single, intravenous
dose: 5 g
route of administration: Intravenous
experiment type: SINGLE
co-administered:
MEZLOCILLIN serum
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
2.1 h
3 g single, intravenous
dose: 3 g
route of administration: Intravenous
experiment type: SINGLE
co-administered:
MEZLOCILLIN serum
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
Doses

Doses

DosePopulationAdverse events​
6 g 1 times / day multiple, intramuscular
Studied dose
Dose: 6 g, 1 times / day
Route: intramuscular
Route: multiple
Dose: 6 g, 1 times / day
Sources:
unhealthy, 19-56 years
n = 6
Health Status: unhealthy
Condition: surgical infections
Age Group: 19-56 years
Sex: M+F
Population Size: 6
Sources:
5 g single, intravenous
Highest studied dose
Dose: 5 g
Route: intravenous
Route: single
Dose: 5 g
Sources:
healthy, 22- 29 years
Health Status: healthy
Age Group: 22- 29 years
Sources:
4 g 1 times / day multiple, intramuscular
Dose: 4 g, 1 times / day
Route: intramuscular
Route: multiple
Dose: 4 g, 1 times / day
Sources:
unhealthy, 27-74 years
n = 4
Health Status: unhealthy
Condition: surgical infections
Age Group: 27-74 years
Sex: M+F
Population Size: 4
Sources:
Disc. AE: Nausea, Cephalgia...
AEs leading to
discontinuation/dose reduction:
Nausea (1 patient)
Cephalgia (1 patient)
Colicky (1 patient)
Sources:
AEs

AEs

AESignificanceDosePopulation
Cephalgia 1 patient
Disc. AE
4 g 1 times / day multiple, intramuscular
Dose: 4 g, 1 times / day
Route: intramuscular
Route: multiple
Dose: 4 g, 1 times / day
Sources:
unhealthy, 27-74 years
n = 4
Health Status: unhealthy
Condition: surgical infections
Age Group: 27-74 years
Sex: M+F
Population Size: 4
Sources:
Colicky 1 patient
Disc. AE
4 g 1 times / day multiple, intramuscular
Dose: 4 g, 1 times / day
Route: intramuscular
Route: multiple
Dose: 4 g, 1 times / day
Sources:
unhealthy, 27-74 years
n = 4
Health Status: unhealthy
Condition: surgical infections
Age Group: 27-74 years
Sex: M+F
Population Size: 4
Sources:
Nausea 1 patient
Disc. AE
4 g 1 times / day multiple, intramuscular
Dose: 4 g, 1 times / day
Route: intramuscular
Route: multiple
Dose: 4 g, 1 times / day
Sources:
unhealthy, 27-74 years
n = 4
Health Status: unhealthy
Condition: surgical infections
Age Group: 27-74 years
Sex: M+F
Population Size: 4
Sources:
PubMed

PubMed

TitleDatePubMed
Acute interstitial nephritis associated with mezlocillin, nafcillin, and gentamicin treatment for Pseudomonas infection.
1985 Jul
Severe cholestatic jaundice caused by mezlocillin.
1992 Jul
Pharmacokinetics of mezlocillin and sulbactam under continuous veno-venous hemodialysis (CVVHD) in intensive care patients with acute renal failure.
1997
A prospective randomized trial of ceftazidime versus netilmicin plus mezlocillin in the empirical therapy of presumed sepsis in cirrhotic patients.
1997 Apr
Treatment of accidental high dose intraventricular mezlocillin application by cerebrospinal fluid exchange.
1998 Mar
An outbreak of Salmonella enteritidis infection in pygmy hogs (Sus salvanius).
2001 Apr
Neonatal bacteremia: patterns of antibiotic resistance.
2001 Dec
Efficacy of oral ofloxacin for single-dose perioperative prophylaxis in general surgery--a controlled randomized clinical study.
2001 Nov
[Analysis of prophylactic antibiotics for cesarean section].
2002 Jan
[Spectrum of pathogens and resistance to antibiotics in urinary tract infections and the consequences for antibiotic treatment: study of urology inpatients with urinary tract infections (1994-2001)].
2003 Jan
Clinical, microbiologic, and epidemiologic characteristics of Pseudomonas aeruginosa infections in a University Hospital, Malatya, Turkey.
2006 May
Wound botulism in injection drug users.
2007 Jun
Antibiotic prophylaxis in the management of vesicoureteral reflux.
2008
[Antibiotic susceptibility and occurrence of ESBL, IBL and MBL in Pseudomonas aeruginosa strains].
2008
Comparative analysis of antibiotic resistance characteristics of Gram-negative bacteria isolated from laying hens and eggs in conventional and organic keeping systems in Bavaria, Germany.
2008 Sep
Antibiotic susceptibility profile of Aeromonas spp. isolates from food in Abu Dhabi, United Arab Emirates.
2009 Jan
[Antimicrobial resistance and existence of metallo-beta-lactamase in Acinetobacter species isolated from adult patients].
2009 Jul
Multiple liver abscesses with isolation of Streptococcus intermedius related to a pyogenic dental infection in an immuno-competent patient.
2010
Pseudo-template molecularly imprinted polymer for selective screening of trace beta-lactam antibiotics in river and tap water.
2010 Aug 13
In-vitro efficacy of synergistic antibiotic combinations in multidrug resistant Pseudomonas aeruginosa strains.
2010 Jan
Patents

Sample Use Guides

Unknown
Route of Administration: Other
In Vitro Use Guide
Curator's Comment: Mezlocillin and piperacillin showed higher affinities for Penicillin-binding proteins (PBP) 3 than furbenicillin, but their affinities for PBP 1 b and PBP 2 were much lower than furbenicillin.
Unknown
Name Type Language
MEZLOCILLIN SODIUM
JAN   USP   USP-RS   VANDF   WHO-DD  
Common Name English
Mezlocillin sodium [WHO-DD]
Common Name English
MEZLOCILLIN SODIUM SALT [MI]
Common Name English
4-THIA-1-AZABICYCLO(3.2.0)HEPTANE-2-CARBOXYLIC ACID, 3,3-DIMETHYL-6-(((((3-(METHYLSULFONYL)-2-OXO-1-IMIDAZOLIDINYL)CARBONYL)AMINO)PHENYLACETYL)AMINO)-7-OXO-, MONOSODIUM SALT, (2S-(2.ALPHA.,5.ALPHA.,6.BETA.(S*)))-
Common Name English
MEZLOCILLIN SODIUM [USP IMPURITY]
Common Name English
MEZLOCILLIN SODIUM [VANDF]
Common Name English
Sodium (2S,5R,6R)-3,3-dimethyl-6-[(R)-2-[3-(methylsulfonyl)-2-oxo-1-imidazolidinecarboxamido]-2-phenylacetamido]-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
Common Name English
Code System Code Type Description
ChEMBL
CHEMBL1731
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY
EVMPD
SUB03282MIG
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY
CAS
42057-22-7
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY
FDA UNII
RX227TP94U
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY
PUBCHEM
23685177
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY
DRUG BANK
DBSALT002350
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY
MERCK INDEX
m7520
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY
RXCUI
82048
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY RxNorm
SMS_ID
100000085980
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY
ECHA (EC/EINECS)
255-640-5
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY
EPA CompTox
DTXSID60194898
Created by admin on Fri Dec 15 15:32:03 GMT 2023 , Edited by admin on Fri Dec 15 15:32:03 GMT 2023
PRIMARY