Thank you all for the wonderful replies, I went back to the vet and got 2ml for him which cost me again $14, he has a Luxiating Patella and was on this for a week already, he has to take it for another week. This problem doesnt seem to me that it will get better very soon.
He did not have trouble with his leg until he fell
I feel so bad for him, he seems ok but he does limp every now and then, holds his leg up and licks his knee now and again.
The vet said this is mild...and he has NO arthitis in his little body at the moment.
Does this really get better, or is he doomed now because of the fall ....
Hurts me to see him limp
Thanks everyone Kat....