High Quality Content by WIKIPEDIA articles! Howard Walter Florey, Baron Florey OM FRS (24 September 1898 – 21 February 1968) was an Australian pharmacologist and pathologist who shared the Nobel Prize in Physiology or Medicine in 1945 with Sir Ernst Boris Chain and Sir Alexander Fleming for his role in the making of penicillin. Florey`s discoveries are estimated to have saved over 6 million lives, in Australia. Florey is regarded by the Australian scientific and medical community as one of its greatest scientists. Sir Robert Menzies, Australia`s longest-serving Prime Minister, said that "in terms of world well-being, Florey was the most important man ever born in Australia".