Published dose range
The published veterinary reference range for glucosamine + chondroitin in dogs is 15-30 mg per kg of body weight, given every 24h (loading dose often 2x for 4-6 weeks). In practice: per product label by weight band.
Source: Veterinary Partner (VIN) →Weeks to see effect. Pet-specific products preferred; some human products use xylitol sweetening, check labels.
Skip it or ask a vet first if
shellfish allergy (rare)diabetes (monitor)
If you think you overdosed
Call the Pet Poison Helpline: 855-764-7661 or ASPCA Poison Control: 888-426-4435. Both are staffed 24/7 by veterinary toxicologists.