Cefetamet

An article about the antibiotic Cefetamet

Chemical structure of Cefetamet

Cefetamet is a third-generation cephalosporin antibiotic used to treat a variety of bacterial infections. It is known for its broad-spectrum activity against both Gram-positive and Gram-negative organisms. Cefetamet is particularly effective against respiratory tract infections, urinary tract infections, and skin and soft tissue infections.

Mechanism of Action

Cefetamet works by inhibiting bacterial cell wall synthesis. It binds to penicillin-binding proteins (PBPs) located inside the bacterial cell wall, which are essential for the cross-linking of the peptidoglycan layer. This inhibition leads to the weakening of the cell wall and ultimately causes cell lysis and death of the bacteria.

Pharmacokinetics

Cefetamet is administered orally and is absorbed in the gastrointestinal tract. It is then distributed throughout the body, reaching effective concentrations in various tissues and fluids. The drug is primarily excreted unchanged in the urine, making it particularly useful for treating urinary tract infections.

Clinical Uses

Cefetamet is indicated for the treatment of several types of infections, including:

• Acute bronchitis
• Pneumonia
• Sinusitis
• Pharyngitis
• Cystitis
• Pyelonephritis
• Cellulitis

Side Effects

Common side effects of cefetamet include gastrointestinal disturbances such as nausea, vomiting, and diarrhea. Some patients may experience allergic reactions, including rash, pruritus, and in rare cases, anaphylaxis.

Resistance

Bacterial resistance to cefetamet can occur through various mechanisms, such as the production of beta-lactamase enzymes that degrade the antibiotic, or alterations in PBPs that reduce drug binding. Resistance is a growing concern and underscores the importance of appropriate antibiotic use.

Related pages

• Cephalosporin
• Antibiotic resistance
• Beta-lactam antibiotic