Billy Burpelson wrote:

...
And swallowing something is -not- being "introduced directly into the
body"? I would have thought otherwise...

I mean, "Come on!" You have to ask that?

A hypodermic needles injection is "directly." A swallowed substance is
directly introduced into the digestive tract, where it is the
assimilated into the blood ...

Another example? A bullet from a gun is "directly" introduced into the
body, a swallowed bullet is not ...

Regards,
JS