WHAT IS KNOWN AND OBJECTIVE The pharmacokinetics (PK) and pharmacodynamics (PD) of levofloxacin were investigated following administration of levofloxacin injection in healthy Chinese volunteers for optimizing dosing regimen. METHODS The PK study included single-dose (750 mg/150 mL) and multiple-dose (750 mg/150 mL once daily for 7 days) phases. The concentration of levofloxacin in blood and ...

BACKGROUND Fluoroquinolones are a guideline-recommended therapy for complicated urinary tract infections, including pyelonephritis. Elevated drug concentrations of fluoroquinolones in the urine and therapy with high-dose levofloxacin are believed to overcome resistance and effectively treat infections caused by resistant bacteria. The ASPECT-cUTI phase 3 clinical trial (ClinicalTrials.gov, NCT0...

background and objectives: the selection of alternative treatment options with antibiotic combinations may be used for successful managing of multidrug-resistant acinetobacter baumannii . the aim of this study was to determine the synergistic effects of ampicillin-sulbactam combined with either levofloxacin or tigecycline against mdr a. baumannii. materials and methods: a total 124 of a.baumann...

The differences between the hydration of Portland cements with single and mixed sulfate carriers in presence triethanolamine (TEA) were investigated, possible mechanisms proposed. Without TEA, different types (gypsum, hemihydrate, anhydrite, mixture these) have a comparable process at same molar amount calcium sulfate. At TEA dosage 0.5 wt.%, sample three shows substantially stronger retardatio...

In the title compound, C(14)H(12)ClNO·0.5H(2)O, the N-H bond is in an anti conformation to the C=O bond. The two aromatic rings make a dihedral angle of 49.5 (1)°. The water mol-ecule lies on a twofold rotation axis. In the crystal, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds connect the mol-ecules into a three-dimensional network.

Codeine phosphate forms three hydrates and two anhydrates. The sesquihydrate and hemihydrate, which differ by one water molecule, are stable at room temperature. The influence of this molecule on the internal crystal structure and how it translates into the external crystal shape are reported.

This work investigates the early stages of precipitation of calcium sulfate from aqueous solution at room temperature and shows for the first time that amorphous calcium sulfate (ACS) and calcium sulfate hemihydrate are sequentially precipitated prior to calcium sulfate dihydrate (gypsum).

The crystal structure of the title compound, (C(5)H(14)N(2))[ZnCl(4)]·0.5H(2)O, is built up from discrete 1-methyl-piperazine-diium cations with chair conformation, tetrahedral tetrachloridozincate anions and uncoordinated solvent water mol-ecules linked together by three types of inter-molecular hydrogen bonds, viz. N-H⋯Cl, N-H⋯O and O-H⋯Cl.

The pharmacokinetics of levofloxacin following its single intramuscular administration (3 mg/kg) was investigated in six male buffalo calves. Peak plasma level of 2.95 ± 0.13μg/ml was observed at 1 h and the drug level above MIC90  in plasma was detected up to 12 h of administration. The bioavailability was 68.1 ± 5.4% and levofloxacin was bound to the plasma proteins to the extent of 19.1 ± 1....