Can I Give My Dog Melatonin?

Yes, with care
Melatonin is commonly referenced for dogs at published doses. Published guidance for dogs: under 10 lb: 1 mg; 10-25 lb: 1.5 mg; 26-100 lb: 3 mg; over 100 lb: 3-6 mg, every 8-12h as needed. XYLITOL WARNING: many gummy/fast-melt melatonin products contain xylitol, which is toxic to dogs. Plain tablets only. Check the label every time.
Source: Veterinary Partner (VIN)
Get the exact range for your dog's weight

Skip it or ask a vet first if

xylitol-containing productspregnancywith sedatives

Cats use a different amount

The published cat reference (0.5-1 mg per cat) differs from the dog range. Never split the difference between species; check the cat page instead.

About Melatonin

Melatonin is a calming supplement commonly discussed for situational stress. Reference data on this page reflects published veterinary sources, not a prescription for your dog.

What to have ready when you call the vet

Whether you are confirming a dose or reporting that your dog already got into something, the call goes faster with four facts ready: your dog's current weight, the exact product name and strength from the label, how much was given or eaten, and roughly when. With those, most clinics can answer in one call.

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.

See also