I too, hope that Carl is well, Sarah. My mother is on Coumadin for the rest of her life due to an artificial valve in her heart.....at my sister's house once, mother dropped a pill and didn't realize it. Yoda, the cat, ended up getting ahold of that pill and was on the Vitamin K treatments for months......it was very scarey for a while. Please let us know how Carl is doing. We love him so much!!