Nutritional supplements; nutraceutical preparations for the treatment of bone and joint conditions or diseases for therapeutic or medical purposes; medicines for the treatment of bone and joint conditions or diseases for human purposes; active pharmaceutical ingredient, namely, N-acetyl glucosamine, glucosamine hydrochloride, glucosamine sulfate potassium chloride, glucosamine sulfate sodium chloride; dietetic beverages adapted for medical purposes; dietary supplements for animals; medicines for the treatment of bone and joint conditions or diseases for veterinary purposes; chemico-pharmaceutical preparations for the treatment of bone and joint conditions or diseases; dietetic substances, namely, glucosamine tablets, granules, capsules, oral Liquid, effervescent tablets adapted for medical use; medicines in the form of tablets for the treatment of bone and joint conditions or diseases