[lelio]

cipro, amoxicillin and terramycian...
And good luck finding them. These fluoroquinolones are flying off the shelves; well out of the pharmacies as you'll need a perscription to get them.
What's scary is that an anthrax infection feels like the flu. Once you've had it for a couple of days it is probably too late to start a Cipro cycle.

[seeker41]

What about vet supply stores?

[HiTech RedNeck]

According to emedicine.com, plain old Penicillin G works. However I assume this applies to anthrax in the wild, not a hardened biowarfare strain.