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Ampicillin is an antibiotic belonging to the aminopenicillin class of the penicillin family. The drug is used to prevent and treat several bacterial infections , such as respiratory tract infections , urinary tract infections , meningitis , salmonellosis , and endocarditis . [ 7 ]
Ampicillin/flucloxacillin also known as co-fluampicil (), and sold under the tradename Magnapen, is a combination drug of the two β-lactam antibiotics, ampicillin and flucloxacillin, both in equal amounts, available in a capsule and as a liquid, both taken by mouth, and as a formulation which can be given by injection into muscle or vein.
Ampicillin/sulbactam is a combination of a β-lactam antibiotic and a β-lactamase inhibitor. Ampicillin works by binding to penicillin-binding proteins (PBPs) to inhibit bacterial cell wall synthesis. [13] [14] This causes disruption of the bacterial cell wall and leads to bacterial cell death.
The aminopenicillins are a group of antibiotics in the penicillin family that are structural analogs of ampicillin (which is the 2-amino derivative of benzylpenicillin, hence the name). [1] Like other penicillins and beta-lactam antibiotics , they contain a beta-lactam ring that is crucial to its antibacterial activity.
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.
Both the oral and intravenous preparations of flucloxacillin are inexpensive and are available as the sodium salt flucloxacillin sodium, in capsules (250 or 500 mg), oral suspensions (125 mg/5 ml or 250 mg/5 ml), and injections (powder for reconstitution, 250, 500, 1000 and 2000 mg per vial).
Penicillin V can be taken by mouth because it is relatively resistant to stomach acid. Doses higher than 500 mg are not fully effective because of poor absorption. It is used for the same bacterial infections as those of penicillin G and is the most widely used form of penicillin. [34]
Dicloxacillin is a narrow-spectrum β-lactam antibiotic of the penicillin class. [1] It is used to treat infections caused by susceptible (non-resistant) Gram-positive bacteria. [1]