This drug does have veterinary uses, but the product and the amount have to be chosen by a vet who knows your dog. There is no at-home dose.
Melatonin is a hormone supplement used by veterinarians for selected sleep, behavior and hair-loss conditions. A human supplement is not automatically suitable for a dog.
Educational reference. Not individualized veterinary advice.(more)
See this page's cited references for supporting information and our Sources page for the reference organizations we use. Citations do not imply that those organizations reviewed or endorsed DogSafe.
Part of ADHD stimulants and sleep aids on our medication safety hub.
Part of our guide to Human Medicines and Dogs: Products, Prescriptions and Exposure.
Do not wait for symptoms and do not wait until you have filled in the form below. Call first, then use the checklist while you are on the phone.
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Exposure details to have ready
These are the questions a veterinarian or poison-control operator will ask. Fill in what you know and leave the rest blank. This tool does not estimate a dose or a risk score: medication risk depends on the exact ingredient, strength, and formulation, so the assessment has to come from the clinician on the call.
- Keep the package, blister pack, or prescription bottle. The strength and the full ingredient list are what make the advice specific.
- Do not induce vomiting unless a veterinarian or poison-control professional tells you to. It is the wrong move for several medications and can cause harm on its own.
- Do not give milk, food, salt, hydrogen peroxide, or any home remedy on your own.
- Do not give a second dose of anything to make up for one you think was missed.
- Count what is left in the packet, so the number missing can be worked out.
Your exposure summary
Read this down the phone or paste it into a message to your vet. It stays on your device; nothing here is sent to DogSafe.
Why Melatonin needs caution
Melatonin is a hormone supplement used by veterinarians for selected sleep, behavior and hair-loss conditions. A human supplement is not automatically suitable for a dog. Gummies, liquids and combination sleep products can have different ingredients; some contain xylitol, which is poisonous to dogs. Sleepiness can occur with melatonin itself. The amount, formulation and other ingredients all matter after an accidental ingestion, even if the label does not list xylitol.
Part of the Xanax (Alprazolam) guide
For related dog-safety questions and product-by-product answers, see the complete xanax (alprazolam) guide.
Signs to watch for
Sleepiness or other unexpected changes. Xylitol exposure can cause weakness, unsteadiness, collapse or seizures.
Related items
Check the exact item or ingredient before assuming two similar exposures carry the same risk.
What to do next
Have the exact ingredient name, strength or concentration, amount missing, possible time, dog’s weight and current medications ready. Report chewed packaging and ask what to do before the next prescribed dose.
🚨Step-by-step: what to do in the first 10 minutes →Available 24/7. A consultation fee may apply.
FAQ
This page gives no dose or safe-exposure threshold. Follow the prescription for this dog; ask the veterinarian to confirm the product and any change to the schedule.
Prevent further access and keep the packaging. Do not induce vomiting or give a home remedy unless a veterinary professional directs you for this exposure.
Call promptly after an accidental ingestion, suspected extra dose, unknown amount or unexpected reaction. Breathing difficulty, collapse, seizures or inability to respond needs emergency veterinary care. Do not wait for those signs before calling.
Keep the bottle and check the full ingredient list for xylitol and any additional active ingredients. Record how many gummies are missing and call with the label. An absent xylitol listing does not establish that the exposure is safe.
- VCA Animal Hospitals: melatonin
- Pet Poison Helpline: xylitol