Preppers have been known to stockpile aquatic antibiotics, which are simply repackaged human medications.

Not that anyone here would need antibiotics for any reason.

http://www.aquaticpharmacy.com/eshop.html

http://www.cdc.gov/std/treatment/201...infections.htm

http://www.cdc.gov/std/treatment/201...tions.htm#dual

-Jeepster1.