
`Not sure on the dosage try looking at www.zipvit.co.uk they're certainly cheaper than H&B and, I think, give info on dog dosages.
Re limping after exercise as a 'weekend athlete' and especially since the bio-flow collar - if not previously used to being able to do so much your dog's muscles will be stiff and aching too. This might not all be due to athritus. Try to make sure your dog is exercised well [not necessarily for long] every day to keep both joints and muscles fit and loose.
I wonder if there are any sites that give advice on getting a dog fit or training for specific sports or levels of activity - I know there's lots for people that include advice on diet etc. Anyone know of any?