Why isn’t more antibiotics injected rather than oral?

Question

Won’t antibiotics do less harm to our beneficial gut bacteria if it is injected directly into the body rather than go through our digestive tract?

In: 100

Answer 1

Not a doctor but I assume the antibiotics people take target certian receptors on the bacteria they are trying to kill. Those receptors probably aren’t present in gut bacteria, basically making the meds oblivious to our good bacteria