SCP Foundation

А по-моему необычно, но скушно, в отличии от фильма, что вы упомянули.

I take your point, however, this is perhaps caused by a mild mistranslation not exactly focusing on what I intended.
The original article had the following.

Thorough cleaning of the wounds using physiologic solution, followed by prophylactic penicillin treatment have been shown to aid recovery.

The key word here is "prophylactic" - the penicillin is used to suppress potential infections developing, rather than to cure ones if they manifest - in that case, I guess the Foundation switches to heavier grades (probably picked for sensitivity after cultivation of germ culture), which are for the same reason not a great idea to use for this sort of preventive treatments as it promotes development of immune germ strains.

It still might be a stupid idea - tbh. I am a mechanical engineer by qualification, not a doctor, so I might have fucked up - but this made sense to me.