Hey. Doctor here. I wish you wouldn't talk about antibiotic's "potency". It's a common misconception. Different antibiotics work against different bacteria. Some work against a broad range, and some against a narrow range. Vancomycin, for example, is very good at killing gram positive bacteria, but is useless against gram negative bacteria -- so Vancomycin cannot be the "most potent" antibiotics. Would potency be a drug that kills all of one kind of bacteria but leaves another alive? Or would potency be a drug that kills all kinds of different bacteria? Either way, there is no "strongest" or "most potent" antibiotic.
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