Search results
Results from the WOW.Com Content Network
Augmentin 250, for example, contains 250 mg of amoxicillin and 125 mg of clavulanic acid. [ 12 ] [ 27 ] An intravenous preparation has been available in the UK since 1985, [ 28 ] but no parenteral preparation is available in the US; [ citation needed ] the nearest equivalent is ampicillin/sulbactam .
β-Lactam antibiotics are indicated for the prevention and treatment of bacterial infections caused by susceptible organisms. At first, β-lactam antibiotics were mainly active only against gram-positive bacteria, yet the recent development of broad-spectrum β-lactam antibiotics active against various gram-negative organisms has increased their usefulness.
The following is a list of antibiotics. The highest division between antibiotics is bactericidal and bacteriostatic . Bactericidals kill bacteria directly, whereas bacteriostatics prevent them from dividing.
Clavulanic acid is a β-lactam drug that functions as a mechanism-based β-lactamase inhibitor.While not effective by itself as an antibiotic, when combined with penicillin-group antibiotics, it can overcome antibiotic resistance in bacteria that secrete β-lactamase, which otherwise inactivates most penicillins.
Narrow-spectrum antibiotics have low propensity to induce bacterial resistance and are less likely to disrupt the microbiome (normal microflora). [3] On the other hand, indiscriminate use of broad-spectrum antibiotics may not only induce the development of bacterial resistance and promote the emergency of multidrug-resistant organisms, but also cause off-target effects due to dysbiosis.
Amoxicillin is in the β-lactam family of antibiotics. [9] Amoxicillin was discovered in 1958 and came into medical use in 1972. [12] [13] Amoxil was approved for medical use in the United States in 1974, [4] [5] and in the United Kingdom in 1977. [2] It is on the World Health Organization's List of Essential Medicines. [14]
A colored electron microscopy image of methicillin-resistant staphylococcus aureus (), a bacterium commonly targeted by broad-spectrum antibioticsA broad-spectrum antibiotic is an antibiotic that acts on the two major bacterial groups, Gram-positive and Gram-negative, [1] or any antibiotic that acts against a wide range of disease-causing bacteria. [2]
It has Gram-negative coverage which includes Pseudomonas aeruginosa but limited Gram-positive coverage. The carboxypenicillins are susceptible to degradation by beta-lactamase enzymes, although they are more resistant than ampicillin to degradation. Carbenicillin is also more stable at lower pH than ampicillin.