Can I Give My Dog Cosequin?

Yes, with care
Glucosamine + Chondroitin is commonly referenced for dogs at published doses. 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. Weeks to see effect. Pet-specific products preferred; some human products use xylitol sweetening, check labels.
Source: Veterinary Partner (VIN)
Get the exact range for your dog's weight

Skip it or ask a vet first if

shellfish allergy (rare)diabetes (monitor)

The safe habit

Confirm any medication decision with your veterinarian, who knows your dog's health history and other medications. VetDose shows published reference data, not prescriptions.