I believe you can get them at Walmart but the folks on k9diabetes will have much more information for you. Please visit www.k9diabetes.com and let them help you learn how to do home testing so that you know what is going on in Bonnie's little body and what the red flags are so you can be proactive rather than reactive when she crashes. When it comes to diabetes and cushing's, you need an experienced vet and an educated pet owner. When either or both are missing, that's when dogs get into trouble so please, please let Natalie's group help you. We'll be here for you on the cushing's front but cushing's needs to go on the back burner until you have the diabetes, anemia and HGE under control. I am truly concerned about Bonnie.