The funny thing is that this drug is given to horses in their feed. Like how we just put Vitamin D in our milk or Iodine in our salt, they put this drug in horse feed. I've tried to buy it this way, but you need a vet's license in this state to buy it wholesale. If things get bad, I'll try to buy it off of farriers or something and then dilute it down.
So, to be clear, my SO takes a drug so cheap they literaly toss it into horse feed, but some insurances will try to charge us ~$1000/gram for this.
[0] It's not really a drug per se, it's more of a supplement in that it does not cross the blood-brain barrier. It interacts in a more digestive sense.
P.S. I've written before about the issues with CU-Anschutz and vaccinations here and it may be interesting to you: https://news.ycombinator.com/item?id=19760317