Penicillin

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is part of a group of antibiotics called cephalosporins used to treat certain types of bacteria in many different parts of the body. "Whenever antibiotics are used, there is selective pressure for resistance to ... For example, penicillin kills bacteria by attaching to their cell walls, ... Penicillin refers to a group of ?-lactam antibiotics used in the treatment of bacterial infections

caused by susceptible, usually Gram-positive, organisms. ... Penicillin At Cost $7.94 Penicillin (sometimes abbreviated PCN) refers to a group of ?-lactam antibiotics used in the treatment of bacterial

infections ... Antibiotics should not be used for infections caused by viruses such as the common cold ... is credited with discovering the first antibiotic, penicillin.

... The first antibiotic that was discovered

and used consistently was penicillin, which happened

to be accidentally discovered