Why do hospitals prefer injecting medications than offering pills?

Question

Some background : I was in the hospital recently for a couple of days and was able to talk and walk.. however, the doctors prescribed injections and IV canulisation over asking me to pop antibiotics and anti gastric medication. Is there a specific reason for hospitals to prefer it or is it just a matter of convenience?

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Answer 1

The first two things that pop in my head are that IV starts working much faster and the first pass effect which degrades approximately 70% of any medication orally.