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Details

Stereochemistry RACEMIC
Molecular Formula C19H15F3N4O3.C7H8O3S
Molecular Weight 576.544
Optical Activity ( + / - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of TOSUFLOXACIN TOSYLATE

SMILES

CC1=CC=C(C=C1)S(O)(=O)=O.NC2CCN(C2)C3=NC4=C(C=C3F)C(=O)C(=CN4C5=CC=C(F)C=C5F)C(O)=O

InChI

InChIKey=CSSQVOKOWWIUCX-UHFFFAOYSA-N
InChI=1S/C19H15F3N4O3.C7H8O3S/c20-9-1-2-15(13(21)5-9)26-8-12(19(28)29)16(27)11-6-14(22)18(24-17(11)26)25-4-3-10(23)7-25;1-6-2-4-7(5-3-6)11(8,9)10/h1-2,5-6,8,10H,3-4,7,23H2,(H,28,29);2-5H,1H3,(H,8,9,10)

HIDE SMILES / InChI

Description
Curator's Comment: description was created based on several sources, including: http://medical.taishotoyama.co.jp/data/if/pdf/ozx.pdf

Tosufloxacin is a fluoroquinolone antibacterial agent. Tosufloxacin is an inhibitor of bacterial DNA gyrase and topoisomerase IV. Tosufloxacin is indicated for the treatment of various infections such as skin, respiratory, urinary, gynecologic, ophthalmologic, otolaryngologic, dental infections. Fluoroquinolones including tosufloxacin have a potential risk of inducing cartilage and joint toxicity in children. It is also associated with severe thrombocytopenia and nephritis, and hepatotoxicity.

CNS Activity

Curator's Comment: Known to be CNS penetrant in rats. Human data not available.

Originator

Curator's Comment: http://adisinsight.springer.com/drugs/800005704 | http://www.chemdrug.com/article/8/3285/16420748.html

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Curative
Ozex

Approved Use

It is usually used to treat various infections such as skin/respiratory/urinary/gynecologic/ophthalmologic/otolaryngologic/dental infections.

Launch Date

1990
Curative
Ozex

Approved Use

It is usually used to treat various infections such as skin/respiratory/urinary/gynecologic/ophthalmologic/otolaryngologic/dental infections.

Launch Date

1990
Curative
Ozex

Approved Use

It is usually used to treat various infections such as skin/respiratory/urinary/gynecologic/ophthalmologic/otolaryngologic/dental infections.

Launch Date

1991
Curative
Ozex

Approved Use

It is usually used to treat various infections such as skin/respiratory/urinary/gynecologic/ophthalmologic/otolaryngologic/dental infections.

Launch Date

1990
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
0.45 μg/L
150 mg 3 times / day multiple, oral
dose: 150 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
0.6 μg/L
150 mg 3 times / day multiple, oral
dose: 150 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
0.83 μg/L
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
0.62 μg/L
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
0.73 μg/L
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
0.82 μg/L
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
4.09 μg × h/mL
150 mg 3 times / day multiple, oral
dose: 150 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
3.84 μg × h/mL
150 mg 3 times / day multiple, oral
dose: 150 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
4.5 h
150 mg 3 times / day multiple, oral
dose: 150 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
3.59 h
150 mg 3 times / day multiple, oral
dose: 150 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
3.85 h
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
4 h
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
9.8 h
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
10.5 h
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
TOSUFLOXACIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
Doses

Doses

DosePopulationAdverse events​
200 mg 3 times / day multiple, oral
Recommended
Dose: 200 mg, 3 times / day
Route: oral
Route: multiple
Dose: 200 mg, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Food Status: UNKNOWN
Sources:
Disc. AE: Anaphylactoid shock, Toxic epidermal necrolysis...
AEs leading to
discontinuation/dose reduction:
Anaphylactoid shock
Toxic epidermal necrolysis
Oculomucocutaneous syndrome
Convulsion
Consciousness abnormal
Acute renal failure
Interstitial nephritis
Liver disorder
Sources:
300 mg 2 times / day multiple, oral
Recommended
Dose: 300 mg, 2 times / day
Route: oral
Route: multiple
Dose: 300 mg, 2 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
AEs

AEs

AESignificanceDosePopulation
Acute renal failure Disc. AE
200 mg 3 times / day multiple, oral
Recommended
Dose: 200 mg, 3 times / day
Route: oral
Route: multiple
Dose: 200 mg, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Food Status: UNKNOWN
Sources:
Anaphylactoid shock Disc. AE
200 mg 3 times / day multiple, oral
Recommended
Dose: 200 mg, 3 times / day
Route: oral
Route: multiple
Dose: 200 mg, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Food Status: UNKNOWN
Sources:
Consciousness abnormal Disc. AE
200 mg 3 times / day multiple, oral
Recommended
Dose: 200 mg, 3 times / day
Route: oral
Route: multiple
Dose: 200 mg, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Food Status: UNKNOWN
Sources:
Convulsion Disc. AE
200 mg 3 times / day multiple, oral
Recommended
Dose: 200 mg, 3 times / day
Route: oral
Route: multiple
Dose: 200 mg, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Food Status: UNKNOWN
Sources:
Interstitial nephritis Disc. AE
200 mg 3 times / day multiple, oral
Recommended
Dose: 200 mg, 3 times / day
Route: oral
Route: multiple
Dose: 200 mg, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Food Status: UNKNOWN
Sources:
Liver disorder Disc. AE
200 mg 3 times / day multiple, oral
Recommended
Dose: 200 mg, 3 times / day
Route: oral
Route: multiple
Dose: 200 mg, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Food Status: UNKNOWN
Sources:
Oculomucocutaneous syndrome Disc. AE
200 mg 3 times / day multiple, oral
Recommended
Dose: 200 mg, 3 times / day
Route: oral
Route: multiple
Dose: 200 mg, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Food Status: UNKNOWN
Sources:
Toxic epidermal necrolysis Disc. AE
200 mg 3 times / day multiple, oral
Recommended
Dose: 200 mg, 3 times / day
Route: oral
Route: multiple
Dose: 200 mg, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Food Status: UNKNOWN
Sources:
PubMed

PubMed

TitleDatePubMed
[Intractable pediatric infectious disease: examining the ability of a new drug, tosufloxacin tosilate hydrate for pediatric].
2010-12
Legionella pneumophila induces cathepsin B-dependent necrotic cell death with releasing high mobility group box1 in macrophages.
2010-11-22
Cytotoxicity of five fluoroquinolone and two nonsteroidal anti-inflammatory benzalkonium chloride-free ophthalmic solutions in four corneoconjunctival cell lines.
2010-09-20
[Epidemiological analysis of Streptococcus pneumoniae in Gifu prefecture].
2010-06
Risk factors for acute prostatitis after transrectal biopsy of the prostate.
2010-06
[Antibiotic susceptibility of blood-borne Streptococcus pneumoniae and efficacy assessment of respiratory quinolones using Monte Carlo simulation].
2010-02
Prediction of pharmacological and xenobiotic responses to drugs based on time course gene expression profiles.
2009-12-02
[Efficacy of tosufloxacin in genital chlamydial infections].
2009-10
Antituberculosis activity of the molecular libraries screening center network library.
2009-09
Measurement of AQCmax of five different ophthalmic solutions and discussion of its new application.
2009-08
Levofloxacin 0.5% ophthalmic solution: a review of its use in the treatment of external ocular infections and in intraocular surgery.
2009-06-18
[Antibacterial activity of quinolones against various clinically isolated strains and evaluation of efficacy based on the pharmacokinetics/pharmacodynamics theory].
2009-06
Fluoroquinolones reduce carrageenan-induced edema in rats and the involvement of the glucocorticoid receptor system.
2009-04
Functional characterization of multidrug and toxin extrusion protein 1 as a facilitative transporter for fluoroquinolones.
2009-02
Corneal deposits after topical tosufloxacin in a patient with poor tear secretion.
2009-01
Quantitative comparison of the convulsive activity of combinations of twelve fluoroquinolones with five nonsteroidal antiinflammatory agents.
2009
[Sensitivity surveillance of Haemophilus influenzae isolates for several antibiotics in Gifu Prefecture (2006)].
2008-08
Antibiotic prophylaxis for transrectal prostate biopsy: a prospective randomized study of tosufloxacin versus levofloxacin.
2008-07
Mutations in the quinolone resistance determining region in Staphylococcus epidermidis recovered from conjunctiva and their association with susceptibility to various fluoroquinolones.
2008-06
In vitro susceptibilities of bacterial isolates from conjunctival flora to gatifloxacin, levofloxacin, tosufloxacin, and moxifloxacin.
2008-03
Multidrug-resistant typhoid fever outbreak in travelers returning from Bangladesh.
2007-12
[A case of acute bronchitis caused by Neisseria meningitidis associated with HIV infection].
2007-11
Effect of GrlA mutation on the development of quinolone resistance in Staphylococcus aureus in an in vitro pharmacokinetic model.
2007-11
[Effectiveness of switch therapy for peritonitis].
2007-08
A novel in vivo rabbit model that mimics human dosing to determine the distribution of antibiotics in ocular tissues.
2007-08
Tosufloxacin tosilate-induced thrombocytopenic purpura.
2007-07
[Antibacterial activity of tosufloxacin against major organisms detected from patients with respiratory infections].
2007-04
[Susceptibility of clinical isolates from primary care clinics to oral antibacterial agents].
2007-02
[Evaluation of efficacy of oral quinolone against Streptococcus pneumoniae AND Haemophilus influenzae with the use of Monte Carlo simulation].
2006-12
[Successful treatment with voriconazole for disseminated cutaneous and visceral infection by Fusarium solani in a patient with acute myeloid leukemia].
2006-08
Azithromycin failure in Mycoplasma genitalium urethritis.
2006-07
[Sensitivity surveillance of Streptococcus pneumoniae isolates for several antibiotics in Gifu prefecture (2004)].
2006-06
Antibacterial activity of tosufloxacin against major organisms detected from patients with respiratory or otorhinological infections: comparison with the results obtained from organisms isolated about 10 years ago.
2006-06
Pharmacodynamic evaluation of tosufloxacin against Streptococcus pneumoniae in an in vitro model simulating serum concentration.
2006-02
In vitro activity of sitafloxacin compared with several fluoroquinolones against Streptococcus anginosus and Streptococcus constellatus.
2006-02
In vitro activity of pazufloxacin, tosufloxacin and other quinolones against Legionella species.
2005-12
In vitro activity of fluoroquinolones against Mycoplasma genitalium and their bacteriological efficacy for treatment of M. genitalium-positive nongonococcal urethritis in men.
2005-11-01
[Clinical experience of streptococcal balanoposthitis in 47 healthy adult males].
2005-11
Antimicrobial activities of tosufloxacin against Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella branhamella catarrhalis isolated from otolaryngological infectious diseases.
2005-10
Antimicrobial safety: focus on fluoroquinolones.
2005-07-15
Prevalence of Ile-460-Val/ParE substitution in clinical Streptococcus pneumoniae isolates that were less susceptible to fluoroquinolones.
2005-07
Terbium sensitized determination of tosufloxacin using electrochemiluminescence method.
2005-04
Therapeutic effect of the quinolone prodrug prulifloxacin against experimental urinary tract infections in mice.
1996-12
N-1-tert-butyl-substituted quinolones: in vitro anti-Mycobacterium avium activities and structure-activity relationship studies.
1996-11
Structure-activity relationships of quinolone agents against mycobacteria: effect of structural modifications at the 8 position.
1996-10
[In vitro anti-MAC activities of new quinolones in focus (2)].
1996-09
Trovafloxacin is active against Toxoplasma gondii.
1996-08
In-vitro activity of quinolones and macrolides against mycobacteria.
1994-09
Comparative in-vitro activities of the new quinolone, Bay y 3118, and ciprofloxacin, sparfloxacin, tosufloxacin, CI-960 and CI-990.
1993-04
Fluoronaphthyridines as antibacterial agents. 4. Synthesis and structure-activity relationships of 5-substituted-6-fluoro-7-(cycloalkylamino)-1,4-dihydro-4-oxo-1,8- naphthyridine-3-carboxylic acids.
1992-02-07
Patents

Sample Use Guides

In general, for adults, take 2 to 3 tablets (300 to 450 mg of the active ingredient) a day, in 2 to 3 divided doses. The dosage may be adjusted according to disease, symptoms, etc. of the patient. If symptoms are severe or the effect is insufficient, take 4 tablets (600 mg) a day. Osteomyelitis, arthritis: In general, for adults, take 1 tablet (150 mg of the active ingredient) at a time, 3 times a day. The dosage may be adjusted according to disease, symptoms, etc. of the patient. If symptoms are severe or the effect is insufficient, take 4 tablets (600 mg) a day. Typhoid/paratyphoid fever: In general, for adults, take 1 tablet (150 mg of the active ingredient) at a time, 4 times a day for 14 days.
Route of Administration: Oral
The MIC90s of tosufloxacin among the 27 isolates of macrolide-resistant Mycoplasma pneumoniae (MRMP) was 0.25 ug/ml and those among the 23 isolates of macrolide-sensitive Mycoplasma pneumoniae (MSMP) was 0.5 μg/ml.
Name Type Language
TOSUFLOXACIN TOSILATE
JAN   MART.   WHO-DD  
Preferred Name English
TOSUFLOXACIN TOSYLATE
Common Name English
Tosufloxacin tosilate [WHO-DD]
Common Name English
TOSUFLOXACIN TOLUENESULFONATE, (±)-
Common Name English
TOSUFLOXACIN TOSILATE [MART.]
Common Name English
TOSUFLOXACIN TOSILATE [JAN]
Common Name English
1,8-NAPHTHYRIDINE-3-CARBOXYLIC ACID, 7-(3-AMINO-1-PYRROLIDINYL)-1-(2,4-DIFLUOROPHENYL)-6-FLUORO-1,4-DIHYDRO-4-OXO-, 4-METHYLBENZENESULFONATE
Common Name English
TOSUFLOXACIN TOLUENESULFONATE [MI]
Common Name English
Classification Tree Code System Code
NCI_THESAURUS C795
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
Code System Code Type Description
FDA UNII
NO6NM634EH
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
EPA CompTox
DTXSID8047842
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
ChEMBL
CHEMBL273348
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
MERCK INDEX
m10984
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY Merck Index
CHEBI
77605
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
SMS_ID
100000084639
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
CAS
115964-29-9
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
NCI_THESAURUS
C76234
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
EVMPD
SUB04924MIG
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
MESH
C055185
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
PUBCHEM
93858
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
PRIMARY
CAS
100490-94-6
Created by admin on Mon Mar 31 18:19:22 GMT 2025 , Edited by admin on Mon Mar 31 18:19:22 GMT 2025
NON-SPECIFIC STOICHIOMETRY