Levofloxacin

from source

C18H20FN3O4 · 361.4 g/mol

Levaquin · Iquix · Quixin · Floxin

What is Levofloxacin?

A fluoroquinolone antibiotic sold as Levaquin, used for pneumonia and urinary infections. Levofloxacin (C18H20FN3O4, 361 g/mol) is an antibiotic dispensed on prescription. from source

CategoryPrescription medicine

Chemical familyCarboxylic Acids Aromatics Ethers Halogenated

LeaderboardsBiggest Deadliest

Fig. 1 · 2D structure RDKit

SMILESC[C@H]1COC2=C3N1C=C(C(=O)C3=CC(=C2N4CCN(CC4)C)F)C(=O)O

Where you'll find it

Dispensed on prescription, not sold on a shelf. See the rest of the prescription medicine group.

Relative acute toxicity from source

Animal study data · LD50

Reported LD50: 640 mg/kg · low toxicity
Species: rat
Route: oral

An LD50 describes acute toxicity under experimental conditions and is not a safe or dangerous dose for a person.

Toxicity & hazards

Toxicity · LD50

640 mg/kg · low toxicity · LD50 rat oral from source

DangerIrritantHealth hazardH302, H317, H334, H361, H362from source

Keep roaming

Where Levofloxacin leads

Sources & methodology

PubChem CID: 149096
Wikidata: Q424193
Structure: PubChem → RDKit
LD50: PubChem
Similar molecules: MoleculeFinder fingerprint similarity
Data refreshed: September 13, 2026

How MoleculeFinder sources and labels its data