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Ampicillin-sulbactam only comes in a parenteral formulation to be either used as intravenous or intramuscular injections, and can be formulated for intravenous infusion. [2] [17] It is formulated in a 2:1 ratio of ampicillin:sulbactam. The commercial preparations available include: [17] 1.5 grams (1 gram ampicillin and 0.5 gram 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 inclusion of sulbactam extends ampicillin's spectrum of action to beta-lactamase producing strains of bacteria. [2] Oral sulbactam with the intravenous form provides a regimen of continuous sulbactam therapy throughout the treatment, resulting in better clinical results. [citation needed] It was patented in 1979 and approved for medical use ...
Sulbactam is primarily used as a suicide inhibitor of β-lactamase, shielding more potent beta-lactams such as ampicillin. [6] Sulbactam itself contains a beta-lactam ring, and has weak antibacterial activity by inhibiting penicillin binding proteins (PBP) 1 and 3, but not 2.
Currently marketed β-lactamase inhibitors are not sold as individual drugs. Instead they are co-formulated with a β-lactam antibiotic with a similar serum half-life. This is done not only for dosing convenience, but also to minimize resistance development that might occur as a result of varying exposure to one or the other drug.
Infections caused by the non-fermenting gram-negative bacteria Pseudomonas aeruginosa and Acinetobacter baumanni are most commonly encountered in hospitalized people. These bacteria exhibit an unusually high level of intrinsic resistance to antibiotics due to their expression of a wide range of resistance mechanisms.
In molecular biology, ticarcillin is used to as an alternative to ampicillin to test the uptake of marker genes into bacteria. It prevents the appearance of satellite colonies that occur when ampicillin breaks down in the medium. It is also used in plant molecular biology to kill Agrobacterium, which is used to deliver genes to plant cells.
Untreated PID can result in long-term complications including infertility, ectopic pregnancy, chronic pelvic pain, and cancer. [2] [3] [4] The disease is caused by bacteria that spread from the vagina and cervix. [5] It has been reported that infections by Neisseria gonorrhoeae or Chlamydia trachomatis are present in 75 to 90 percent of cases. [2]