Melatonin

Caution

Verdict

Do not self-medicate. If ingested, call a vet — check the label for xylitol.

Toxic principle: melatonin; some chewables also contain xylitol
Also called: sleep gummy, sleep aid
Source: ASPCA · Verified 2026-08-13

Verdict

Melatonin gummies and tablets are a frequent “I gave my cat this to sleep” search. This site does not provide a dose. Many chewables use xylitol, which is a separate problem (especially in dogs; still avoid in cats). Plain melatonin overdose is often sedation; the extras on the label are what turn it into an emergency.

Symptoms to watch for

  • lethargy
  • wobbliness

What to do

Read the inactive ingredients. Call a vet, especially if xylitol is listed or the cat is hard to rouse.