Signs Of Excess Glucosamine Overdose In Dogs. Suddenly, the dose you are giving may be an overdose and the dog becomes hypoglycemic. In dogs, vomiting, lethargy, urine retention, and diarrhea have been reported.
The dose will be increased or reduced based on your dog’s weight and is usually split into two doses to be given twelve hours apart. She will look for other signs of toxicity such as tremors and agitation, and will take your dog’s temperature and blood pressure. Glucosamine has also been reported as a top poison for dogs in recent years due to the potential for overdosing.