There's a couple of books over at paladin-press.com that deal with this.
Authors name is Ragnar Benson. He did this stuff for years in third world
countries.

J. wrote:

> Speaking of antibiotics availability and Y2K, any idea if, since it's
> likely that drug prescriptions will be few and far between next year,
> "Penicillin G" for animals could safely be used on humans? Available now
> without a prescription. It is injectible... other such anti-biotics for
> animals are also readily available (for the time being) without a
> prescription. See the following link for an example of PenG for animals:
> http://www.lambriarvet.com/catalog/antibiotics4.htm
>
> I realize there are dosage and allergy concerns, but since it is termed
> "sterile" is it safe in humans, does anyone know?
> - Serious replies please! <thanx>
>
> >It might be a good idea to get a tetanus shot anyway, especially if you
> >have a puncture wound.  With Y2K coming, and the military soaking up large
> >amounts of med stuffs (like Penicillian G) again, the stuff might not be
> >available next year.  I usually get one every 5 years or so when I cut
> >myself on something dirty, regardless of how well I can clean the wound.
> >CS is great, but I'd use it as a second line of defense re:tetanus.
>
> --
> The silver-list is a moderated forum for discussion of colloidal silver.
>
> To join or quit silver-list or silver-digest send an e-mail message to:
> [email protected]  -or-  [email protected]
> with the word subscribe or unsubscribe in the SUBJECT line.
>
> To post, address your message to: [email protected]
>
> List maintainer: Mike Devour <[email protected]>