natural penicillins are based on the original penicillin G structure; penicillinase-resistant penicillins, notably methicillin and oxacillin, are active even in the presence of the bacterial enzyme
Penicillin is carried to the site of infection via blood flow. You have different types of penicillin are there for the same.
File:Penicillin_core.svgFormula after Wikipedia; R is specific for different types of penicillins.
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Penicillin is an antibiotic.
Different names.
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No, Zithromax and penicillin are different antibiotics in different classes.
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There are 31 atoms total in penicillin.
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