Moxifloxacin hydrochloride

Description

Moxifioxacin hydrochlodde is one of the two new fluoroquinolonecarboxylic acid antibiotics introduced in 1999 for the treatment of respiratory tract infections such as community-acquired pneumonia, acute exacerbations of bronchitis or acute sinusitis. Moxifloxacin can be synthesized through a 12 step sequence from the classical 4-quinolone-3-carboxylic acid template. Some advantages of Moxifloxacin over Ciprofloxacin, another of Bayer's launched quinolones, have been shown, i.e. an enhanced activity against Gram-positive bacteria (Streptococcus pneumoniae, Clostndium pneumoniae), a favorable pharmacokinetic profile (good tissue penetration and plasma concentrations above MICs) and a lack of phototoxicity (UVA irradiation).

Description

Moxifloxacin is a fluoroquinolone antibiotic. It is active against 390 clinical isolates of aerobic and anaerobic Gram-positive and Gram-negative bacteria (MIC₉₀s = ≤0.25 μg/ml), as well as clinical isolates of methicillin-susceptible and -resistant S. aureus (MIC₉₀s = 0.12 and 2 μg/ml, respectively). Moxifloxacin is an inhibitor of E. coli DNA gyrase that is selective for DNA gyrase over E. coli topoisomerase IV (IC₅₀s = 0.51 and 38.8 mg/L, respectively, in cell-free assays). It prevents S. aureus- or P. aeruginosa-induced increases in bronchoalveolar lavage fluid (BALF) neutrophil infiltration and reduces S. aureus- or P. aeruginosa-induced increases in lung chemokine (C-X-C motif) ligand 1 (CXCL1) and IL-1β levels in mouse models of bacterial pneumonia when administered at a dose of 100 mg/kg twice per day for two days. Moxifloxacin (100 mg/kg) decreases the number of lung and spleen colony forming units (CFUs) in a mouse model of systemic M. tuberculosis infection. Formulations containing moxifloxacin have been used in the treatment of various bacterial infections.

Chemical properties

Light yellow to yellow crystalline powder

Originator

Bayer (Germany)

The Uses of Moxifloxacin hydrochloride

Moxifloxacin Hydrochloride is an antibacterial agent that inhibits the activities of Topo II (DNA gyrase) and topoisomerase IV.

The Uses of Moxifloxacin hydrochloride

acetylcholinesterase inhibitor (reversible), cognitive enhancer

Definition

ChEBI: A hydrochloride comprising equimolar amounts of moxifloxacin and hydrogen chloride.

Manufacturing Process

Manufacturing process for Moxifloxacin hydrochloride includes 3 steps: Synthesis of intermidate octahydropyrrolo[3,4-b]pyridine (2,8- diazabicyclo[4.3.0]nonane);Synthesis of intermidate 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4- oxo-3-quinolinecarboxylic acid;Syntesis of 1-cyclopropyl-7-(2,8-diazabicyclo[4.3.0]non-8-yl)-6-fluoro-1,4- dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid hydrochloride (moxifloxacin hydrochloride)

brand name

Avelox (Bayer); Vigamox (Alcon.

Therapeutic Function

Antibacterial

General Description

Moxifloxacin Hydrochloride is an anti-infectious compound that belongs to the class of fluoroquinolone antibiotics. It is a well-known broad-spectrum antibiotic prescription medicine effective against a variety of Gram-positive and Gram-negative bacteria including the anaerobic type. It is an S,S-isomer with two chiral centers. It works by preventing the activity of various crucial enzymes involved in the replication, transcription, recombination, and repair of deoxyribonucleic acid in the bacteria such as DNA gyrase (topoisomerase II), topoisomerase IV. It finds its application in the treatment of various ocular and respiratory tract infections.

Biochem/physiol Actions

Moxifloxacin has proved to be effective in treating sinusitis, community-acquired respiratory tract infection, pneumonia and acute exacerbations of chronic bronchitis. It has improved anti-gram positive activity compared to other fluoroquinolone such as ciprofloxacin and ofloxacin. Moxifloxacin is useful in treating skin infections that is of bacterial origin. It is known to have proper penetration into peripheral tissues and inflammatory fluids. Fluoroquinolones stabilize DNA strand breaks created by DNA gyrase and topoisomerase IV by binding to the enzyme-DNA complex. Compared to mammalian DNA gyrase, moxifloxacin has 100 times higher affinity for bacterial DNA gyrase. Moxifloxacin is an antibiotic and works against both Gram-positive and Gram-negative bacteria. Moxifloxacin is being investigated for the treatment of multidrug-resistant tuberculosis.

Side Effects

The possible serious side effects of moxifloxacin hydrochloride including: unusual bruising/bleeding, signs of a new infection (such as sore throat that doesn't go away, fever), signs of kidney problems (such as change in the amount of urine), signs of liver problems (such as nausea/vomiting that doesn't stop, unusual tiredness, stomach/abdominal pain, yellowing eyes/skin, dark urine).

Precautions

Before taking moxifloxacin hydrochloride, tell your doctor or pharmacist if you are allergic to it; or to other quinolone antibiotics (such as ciprofloxacin, levofloxacin); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

References

[1]. cruz la, hall r: enantiomeric purity assay of moxifloxacin hydrochloride by capillary electrophoresis. j pharm biomed anal 2005, 38(1):8-13.
[2]. kamruzzaman m, alam am, lee sh, ragupathy d, kim yh, park sr, kim sh: spectrofluorimetric study of the interaction between europium(iii) and moxifloxacin in micellar solution and its analytical application. spectrochim acta a mol biomol spectrosc 2012, 86:375-380.
[3]. culley cm, lacy mk, klutman n, edwards b: moxifloxacin: clinical efficacy and safety. am j health syst pharm 2001, 58(5):379-388.
[4]. turkes c, soyut h, beydemir s: human serum paraoxonase-1 (hpon1): in vitro inhibition effects of moxifloxacin hydrochloride, levofloxacin hemihidrate, cefepime hydrochloride, cefotaxime sodium and ceftizoxime sodium. j enzyme inhib med chem 2014:1-7.