Which of the following antibiotics is classified as a mycin?

Streptomycin is classified as a mycin antibiotic, which refers to a group of antibiotics that are derived from the bacteria Streptomyces. This classification typically includes aminoglycoside antibiotics, which are effective against a broad range of bacteria, particularly Gram-negative bacteria and certain Gram-positive organisms. Streptomycin, specifically, is used to treat conditions such as tuberculosis and other serious infections.

The other antibiotics listed do not fall under the mycin category. Augmentin is a combination of amoxicillin and clavulanate, primarily a penicillin antibiotic. Ciprofloxacin is a fluoroquinolone, which works by inhibiting bacterial DNA gyrase and is used for a variety of infections. Amoxicillin is another penicillin antibiotic, effective against a wide range of bacterial infections but not categorized as a mycin. Understanding these classifications helps in selecting appropriate antibiotics based on the bacterial infection and the mechanism of action needed.