However, as people in rural areas already know, the antibiotics sold in pharmacies and those sold in feed stores for animals are exactly the same. They're made by the same plants, inspected in the same way, marked in the same way.
Here's a source where you can buy animal antibiotics. Yes, they are all marked "not for human consumption" or words to that effect. In a collapse situation it would still be a good idea to have a stash of antibiotics, and if you can't get them at the Walmart Pharmacy you may need to get them from somewhere else.
Antibiotics from Camping Survival
I first saw this link to the antibiotics at Camping Survival on Jim Rawles' blog a few days ago, to give credit where credit is due.
It goes without saying you have to know what each antibiotic does for people, and what the doses are. Otherwise, you aren't doing yourself much good. Right now, there's plenty of information on the net about that. Or, you can go into a book store and for about $50.00 you can buy a nurses guide to pharmaceuticals that will detail all of that for you. Some are better than others for antibiotics so be sure you look it over before you buy it. I actually use mine to make sure all the medicine the doctors prescribe for me has been deconflicted , so you can get a lot of use out of one of the books in many ways.
Kevin Hayden's blog: article on vet drugs for humans
This is a very good article that covers all the basics in much more detail than I could. I printed a copy of it and put it in my "crash" folder. I only do that for really informative posts.
Am I saying everybody should run out and diagnose themselves. Nope. If you have access to a doctor, that's the way to go. I'm talking about a hypothetical time when you do not have access to doctors or drug stores. If you haven't seen After Armageddon , I'm told you can see it for free on the web. Check that out and you'll take my point.