what is penicillin???
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Penicillin is a mixture of natural antibiotics derived from Penicillium moulds. The two purified natural penicillins in clinical use are penicillin G and penicillin V. Penicillin antibiotics were among the first medications to be effective against many bacterial infections caused by staphylococci and streptococci
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an antibiotic or group of antibiotics produced naturally by certain blue moulds, now usually prepared synthetically. Penicillin was discovered in 1928 and during the second world war became the first antibiotic to be used by doctors.
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