I know there have been a couple of topics about these meds lately but no-one must've seen my question. I ordered Cystaid online for Belle, and the same day the vet gave me Cystease for him, it was going on the insurance claim so I took the Cystease off them. He's just had the last one of those today. Can I use the Cystaid now to get those used up? Are they just the same meds? As from today he's going onto one every other day.