May I have the dosages, please? County of residence?

Most of those are pretty cheap.

Please look at this list of free medical clinics in Alabama:
http://www.freemedicalcamps.com/vcity.php?stateid=AL

Is there one near you?

LOL. Been there with not buying medicines for myself, but yes, my dogs always ate well. But then, they are(were) country dogs. One of 'em likes corn right out of the field.

PS: Also look into ALFA, which you can get with an AFF membership.
https://www.alfains.com/html/Products_Health_Overview.html
http://www.alfafarmers.org/