10-Mavzu. Tabiiy va yarim sintez yo'li bilan olingan betalaktamid qator antibiotiklar Reja

Antibiotics, also known as antibacterials, are types of medications that destroy or slow down the growth of bacteria.

The Greek word anti means "against", and the Greek word bios means "life" (bacteria are life forms).

Antibiotics are used to treat infections caused by bacteria. Bacteria are microscopic organisms, some of which may cause illness. The word bacteria is the plural of bacterium.

Such illnesses as syphilis, tuberculosis, salmonella, and some forms ofmeningitis are caused by bacteria. Some bacteria are harmless, while others are good for us.

Contents of this article:

• 
  What are antibiotics?
  
• 
  How do antibiotics work?
  
• 
  What are antibiotics used for?
  
• 
  What are the side-effects of antibiotics?
  
• 
  Allergic reactions to antibiotics
  
• 
  Antibiotics may clash (interact) with other medicines
  
• 
  How to use antibiotics
  

What are antibiotics?

The US National Library of Medicine¹ says that antibiotics - powerful medicines that fight bacterial infections - can save lives when used properly. Antibiotics either stop bacteria from reproducing or kill them. "Your body's natural defenses can usually take it from there."

Alexander Fleming discovered penicillin, the first natural antibiotic, in 1928.