system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why isn't more antibiotics injected rather than oral?

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?
gpt
Not really, because if you inject something it goes into your blood, and  blood goes everywhere. But giving antibiotics orally is very much less invasive than IV. if treatments are not invasive, then patients are more likely to take them.