A nurse assisting a nursing student with medications asks the student to describe how penicillin work to treat bacterial infections. The student is correct in responding that penicillin disrupt bacterial cell wall synthesis.
Penicillin are a group of antibiotics originally obtained from Penicillium molds, principally P. chrysogenum and P. rubens.
It is used to treat infections caused by bacteria. It does not work on viral infections (such as colds and flu).
Penicillin are members of the β-lactam antibiotics. They are widely used today for different bacterial infections, though many types of bacteria have developed resistance following extensive use.
Penicillin V potassium is used to treat certain infections caused by bacteria such as pneumonia and other respiratory tract infections, scarlet fever, and ear, skin, gum, mouth, and throat infections.
The usual dose in humans is 20 to 30 mg per kilogram (kg) (9.1 to 13.6 mg per pound) of body weight two times a day.
Penicillin works best on gram-positive bacteria by inhibiting peptidoglycan production, making the cells leaky and fragile.
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