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Penicillin

4:42

Alexander Fleming's Discovery of Penicillin

2:04

The Discovery of Penicillin

2:46

How antibiotics work

1:11

Penicllin mechanism of action

4:35

What causes antibiotic resistance? - Kevin Wu

Penicillin is a group of antibiotics which include penicillin G, penicillin V, procaine penicillin, and benzathine penicillin. Penicillin antibiotics were among the first medications to be effective against many bacterial infections caused by staphylococci and streptococci. They are still widely used today, though many types of bacteria have developed resistance following extensive use.
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