How do glycopeptide drugs differ from beta-lactam drugs?
A) Glycopeptide drugs are broad-spectrum drugs, unlike beta-lactamases which are narrow-spectrum drugs.
B) Glycopeptide drugs are often found to be ineffective due to antibiotic-resistance.
C) Glycopeptide drugs are easily absorbed across the intestines and therefore commonly used as oral preparations against systemic infections.
D) Glycopeptide drugs specifically target Gram-negative bacteria.
E) Glycopeptide drugs do not have a beta-lactam ring, so they are not susceptible to beta-lactamases.
Answer: E
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