What Does PEN Stand For?
PEN stands for Penicillin
PEN stands for Penicillin, a groundbreaking antibiotic originally derived from the Penicillium mold. Discovered in 1928 by Alexander Fleming, Penicillin revolutionized medicine by effectively treating a range of bacterial infections. It works by inhibiting bacterial cell wall synthesis, leading to cell lysis and death. Penicillin remains a cornerstone in antibiotic therapy, although resistance has developed in some bacterial strains over time. Its discovery marked the beginning of the antibiotic era, significantly reducing mortality rates from infectious diseases.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym