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Details

Stereochemistry ABSOLUTE
Molecular Formula C21H24N5O8S2.Na.H2O
Molecular Weight 579.579
Optical Activity UNSPECIFIED
Defined Stereocenters 4 / 4
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of MEZLOCILLIN SODIUM MONOHYDRATE

SMILES

O.[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=CZXDIDROKIDGNE-SYNJJEHYSA-M
InChI=1S/C21H25N5O8S2.Na.H2O/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);;1H2/q;+1;/p-1/t12-,13-,14+,17-;;/m1../s1

HIDE SMILES / InChI

Molecular Formula Na
Molecular Weight 22.9898
Charge 1
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula HO
Molecular Weight 17.0073
Charge -1
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C21H25N5O8S2
Molecular Weight 539.582
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 4 / 4
E/Z Centers 0
Optical Activity UNSPECIFIED

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

3.69878401E11
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
A controlled study of the nephrotoxicity of mezlocillin and gentamicin plus ampicillin in the neonate.
1987 Dec
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
Pharmacokinetic basis for oral perioperative prophylaxis with ofloxacin in general surgery.
2001 Aug
Efficacy of oral ofloxacin for single-dose perioperative prophylaxis in general surgery--a controlled randomized clinical study.
2001 Nov
Serotypes, virulence factors, antibiotic sensitivity, beta-lactamase activity and plasmid analysis of Salmonella from children with diarrhea in Tripoli (Libya).
2002
[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
Piperacillin induced bone marrow suppression: a case report.
2003 Jun 5
[Nosocomial pseudomonas aeruginosa-associated keratitis in soft contact lens wearer].
2004 Jan
Antibiotic susceptibility of preoperative normal conjunctival bacteria.
2005 Apr
Potency of IMP-10 metallo-beta-lactamase in hydrolysing various antipseudomonal beta-lactams.
2008 Aug
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
Stenotrophomonas maltophilia induced post-cataract-surgery endophthalmitis: Outbreak investigation and clinical courses of 26 patients.
2009 Apr
Antibiotic susceptibility profile of Aeromonas spp. isolates from food in Abu Dhabi, United Arab Emirates.
2009 Jan
Isolation of Bordetella avium and novel Bordetella strain from patients with respiratory disease.
2009 Jan
[Antimicrobial resistance and existence of metallo-beta-lactamase in Acinetobacter species isolated from adult patients].
2009 Jul
IVC CLAMP: infrahepatic inferior vena cava clamping during hepatectomy--a randomised controlled trial in an interdisciplinary setting.
2009 Oct 13
Multiple liver abscesses with isolation of Streptococcus intermedius related to a pyogenic dental infection in an immuno-competent patient.
2010
Antibiotics for pre-term pre-labour rupture of membranes: prevention of neonatal deaths due to complications of pre-term birth and infection.
2010 Apr
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
Substance Class Chemical
Created
by admin
on Fri Dec 15 15:11:36 UTC 2023
Edited
by admin
on Fri Dec 15 15:11:36 UTC 2023
Record UNII
3CWW8B5904
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
MEZLOCILLIN SODIUM MONOHYDRATE
ORANGE BOOK   WHO-DD  
Common Name English
MEZLOCILLIN SODIUM SALT MONOHYDRATE
MI  
Common Name English
BAYCIPEN
Brand Name English
4-THIA-1-AZABICYCLO(3.2.0)HEPTANE-2-CARBOXYLIC ACID, 3,3-DIMETHYL-6-(((2R)-(((3-(METHYLSULFONYL)-2-OXO-1-IMIDAZOLIDINYL)CARBONYL)AMINO)PHENYLACETYL)AMINO)-7-OXO-, MONOSODIUM SALT, MONOHYDRATE, (2S,5R,6R)-
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, MONOHYDRATE
Common Name English
Mezlocillin sodium monohydrate [WHO-DD]
Common Name English
MEZLOCILLIN SODIUM SALT MONOHYDRATE [MI]
Common Name English
MEZLOCILLIN SODIUM [JAN]
Common Name English
MEZLIN
Brand Name English
BAYPEN
Brand 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, MONOHYDRATE (2S-(2.ALPHA.,5.ALPHA.,6.BETA.(S*)))-
Common Name English
MEZLOCILLIN SODIUM MONOHYDRATE [ORANGE BOOK]
Common Name English
Classification Tree Code System Code
NCI_THESAURUS C1500
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
Code System Code Type Description
EPA CompTox
DTXSID001001279
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
CHEBI
6919
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
MERCK INDEX
m7520
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY Merck Index
SMS_ID
100000169918
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
EVMPD
SUB183639
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
FDA UNII
3CWW8B5904
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
PUBCHEM
23677831
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
NCI_THESAURUS
C87369
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
ChEMBL
CHEMBL1731
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
WIKIPEDIA
Mezlocillin sodium monohydrate
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
CAS
80495-46-1
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
DRUG BANK
DBSALT001339
Created by admin on Fri Dec 15 15:11:36 UTC 2023 , Edited by admin on Fri Dec 15 15:11:36 UTC 2023
PRIMARY
Related Record Type Details
PARENT -> SALT/SOLVATE
ANHYDROUS->SOLVATE
Related Record Type Details
ACTIVE MOIETY