Currently own 2 Weimaraners (8 & 9 yrs old) and have 1 (13+ yrs old) in Foster Care. The foster came to me in such tough shape it was one of those decisions we never want to make. My local pet store recommended your product. Within a week she was not only standing without falling over, she was heading out the dog door, down the ramp, and enjoying the yard. With such great results, I tried it on the 9 yr old. She is now chasing squirrels and running the full length of the field. WELL WORTH THE INVESTMENT.