In this article we will discuss about:- 1. Discovery of Penicillin 2. Structure and Types of Penicillin 3. Antibiotic Spectrum 4. Mechanism of Action. The first penicillin discovered by Alexander Fleming in 1929 as a product of fungus Penicillium notatum was the penicillin G. Also, penicillin G became the first clinically effective antibiotic.
Although Fleming's discovery of penicillin was exciting he could not find a way to make it useful to the public and he quit doing research. Then Howard Florey comes along and starts doing some testing with it. Finally in 1940 he had found a way to make the drug useful for humans and just in time for World War 2. Florey's work with penicillin ended up saving millions of lives and earning him.