Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming. People began using it to treat infections in 1942. There are several enhanced penicillin families which are effective against additional bacteria; these include the antistaphylococcal penicillins, aminopenicillins and the antipseudomonal penicillins. They are derived from "Penicillium" fungi. The term "penicillin" is often used generically to refer to benzylpenicillin (penicillin G, the original penicillin found in 1928), procaine benzylpenicillin (procaine penicillin), benzathine benzylpenicillin (benzathine penicillin), and phenoxymethylpenicillin (penicillin V). Procaine penicillin and benzathine penicillin have the same antibacterial activity as benzylpenicillin but act for a longer period of time. Phenoxymethylpenicillin is less
Penicillin (band) its 15th anniversary as a band. On March 9, 2007 Gisho announced that he would leave the band. His last live was his birthday on May 20, 2007 at Shibuya O-East. Since then the band has continued on as a three piece unit. During the February 11, 2008 live, it was announced the Penicillin would once again change labels, this time to Nippon Crown. As of 2010, they are now on That Records, a division of their talent agency Duplex Developments. Penicillin's song "Romance" was covered by And on the compilation "Crush! -90's V-Rock Best Hit Cover Songs-". The album