The main classes of antibiotics and key drugs are listed below - however there are hundreds of antibiotics and this list is by no means exhaustive. Penicillin was the first antibiotic to be discovered ...

The diagram shows two schematic views of the structure. Penicillin antibiotics are historically significant because they are the first drugs that were effective against many previously serious ...

The diagram shows two schematic views of the structure. Penicillin antibiotics are historically significant because they are the first drugs that were effective against many previously serious ...

Antibiotics are chemicals produced by fungi that kill or prevent the growth of bacteria. Penicillin was the first antibiotic to be discovered. Antibiotics are used to treat bacterial infections.