Is Melatonin Safe for Cats?
Why it’s conditional
Veterinarians occasionally recommend melatonin for anxious or restless cats, and plain melatonin has low toxicity. The caveats matter: gummies and flavored products may contain xylitol, which is dangerous to pets, and combination sleep products may include other drugs unsuitable for cats. A cat that eats many tablets may become markedly sedated.
How to keep your pet safe
Use only a plain, xylitol-free product if your vet approves, and store it where a cat cannot chew the bottle open. Behavioral causes of nighttime restlessness deserve a vet’s assessment first.
Warning signs to watch for
Sleepiness, mild wobbliness, low appetite; xylitol-containing products can cause vomiting, weakness, seizures, or collapse.
When to call the vet
Call your vet or a pet poison hotline with the product name and amount if more than a tablet was eaten, and immediately if xylitol is an ingredient. Report deep sedation to your vet.
Common questions
My cat ate one of my melatonin tablets — should I worry?
One plain tablet usually causes little more than sleepiness in a cat. Check the label for xylitol and other drugs, and call your vet or a poison hotline if you are unsure.
Can melatonin calm my cat at night?
Vets do suggest it for some cats, but nighttime yowling and restlessness can signal medical problems like hyperthyroidism. Get a diagnosis before adding any supplement.
My cat is very sleepy after eating several melatonin gummies — is that dangerous?
Heavy sedation is possible after multiple tablets, and gummies may contain xylitol. Check the ingredients and call a vet or pet poison hotline to be safe.
More medications hazards for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate or touched something concerning, contact your veterinarian or a pet poison hotline right away. In the US: Pet Poison Helpline (855) 764-7661, ASPCA Animal Poison Control (888) 426-4435 (fees may apply).