One of my cats (Oliver) was on it for years and it sure did make a difference! I swore by that drug and I could tell when they changed manufacturer's b/c it did not work as well. Thankfully Oliver likes Pill Pockets so that was not a problem.

I use the RoadRunner pharmacy out in Phoenix for my compounded prescriptions. Their prices are reasonable and shipping is included. Your vet can just phone a prescription in to them and then they will contact you directly.