What a wonderful web site, thank you:o) This tells the whole story and I can direct these 2 suffering ladies to it and they can find out for themselves. I did suggest Cantron to them but haven't heard anything positive or negative from them. Maybe since you have already gone through what they are going through, they will listen to you.
By the way, watch that garlic on your puppy (he's adorable by the way), garlic is toxic to cats and dogs, I don't know why. I got that information on About.com.