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Question

Which of the following is narrow spectrum antibiotic?

A
Amoxycillin
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B
Chloramphenical
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C
Vancomycin
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D
Dysidazirine
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Solution

The correct option is D Dysidazirine
The antibiotics dysidazirine is supposed to be toxic towards certain strains of cancer cells, hence they are narrow spectrum. Chloramphenicol, vencomycin and amoxycillin are examples of broad-spectrum antibiotics, that are used or treating different types of problems.
Chloramphenicol, isolated in 1947, is a broad spectrum antibiotic. It is rapidly absorbed from the gastrointestinal tract and hence can be given orally in case of typhoid, dysentery, acute fever, certain form of urinary infections, meningitis and pneumonia.
Vancomycin and ofloxacin are the other important broad spectrum antibiotics.
Ampicillin and Amoxycillin are synthetic modifications of penicillins. These have broad spectrum.

Dysidazirine:

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