How do Nitroimidazoles work?
Nitroimidazoles work by disrupting the DNA of the susceptible bacteria and inhibiting the protein synthesis of the cell wall leading to cell death; they act as bactericidal and antimicrobial agents. Nitroimidazoles are given orally as intravenous infusions and used for local applications in skin infections.
What is metronidazole mechanism of action?
Mechanism of Action Metronidazole diffuses into the organism, inhibits protein synthesis by interacting with DNA and causing a loss of helical DNA structure and strand breakage. Therefore, it causes cell death in susceptible organisms.
How do glycopeptides work?
Glycopeptides are a type of antibiotics used to treat bacterial infections, especially those caused by gram-positive organisms and enterococcal infections, which are resistant to other antibiotics. Glycopeptide antibiotics work by inhibiting the cell wall synthesis of the bacteria.
What is the mechanism of action of ciprofloxacin?
Mechanism of Action Ciprofloxacin is a bactericidal antibiotic of the fluoroquinolone drug class. It inhibits DNA replication by inhibiting bacterial DNA topoisomerase and DNA-gyrase.
Is Nitroimidazole and metronidazole same?
Metronidazole belongs to the nitroimidazole class of antibiotics and is active against protozoa in addition to anaerobic bacteria. It is bactericidal to anaerobic organisms through formation of free radicals that inhibit DNA synthesis and cause DNA degradation.
Which antibacterial agent is a nitro derivative?
Nitrofurantoin. Nitrofurantoin has broad antibacterial activity but its use in small animals is limited to treatment of lower urinary tract infections.
What is the spectrum of action of metronidazole?
The nitroimidazole antibiotic metronidazole has a limited spectrum of activity that encompasses various protozoans and most Gram-negative and Gram-positive anaerobic bacteria.
What are glycopeptides used for?
Glycopeptide antibiotics (GPAs) are frequently used to treat life-threatening infections caused by multidrug-resistant Gram-positive pathogens, such as Staphylococcus aureus, Enterococcus spp. and Clostridium difficile.
What is the mechanism of action of rifampin?
Mechanism of action — Rifampin is thought to inhibit bacterial DNA-dependent RNA polymerase, which appears to occur as a result of drug binding in the polymerase subunit deep within the DNA/RNA channel, facilitating direct blocking of the elongating RNA [3].
