Antibiotics

An antibiotic is a type of medication that is used to treat bacterial infections. It works by killing or inhibiting the growth of bacteria.

Types of Antibiotics

There are several different classes of antibiotics, including:

• Penicillins: such as amoxicillin and ampicillin
• Cephalosporins: such as cephalexin and ceftriaxone
• Macrolides: such as erythromycin and azithromycin
• Fluoroquinolones: such as ciprofloxacin and levofloxacin
• Tetracyclines: such as doxycycline and minocycline
• Sulfonamides: such as trimethoprim-sulfamethoxazole
• Others: such as metronidazole and vancomycin

How Antibiotics Work

Antibiotics work in different ways to kill or inhibit bacteria. Some antibiotics interfere with the bacteria's cell wall, while others disrupt their protein synthesis or DNA replication.

Using Antibiotics Responsibly

It's important to use antibiotics responsibly to prevent the development of antibiotic-resistant bacteria. This includes taking antibiotics as prescribed, completing the full course of treatment, and not sharing antibiotics with others.

Study Guide Questions

1. What is the purpose of antibiotics?
2. List three different classes of antibiotics and give an example of each.
3. How do antibiotics work to kill or inhibit bacteria?
4. Why is it important to use antibiotics responsibly?