1. Remove the kitty litter from your rat's enclosure immediately. This will prevent your rat from eating any more of the litter.
2. Rinse your rat's mouth out with water. This will help to remove any remaining kitty litter from your rat's mouth and prevent it from being swallowed.
3. Monitor your rat's behavior closely for the next 24 hours. If your rat shows any signs of illness, such as vomiting, diarrhea, or lethargy, take it to the vet immediately.
4. Replace the kitty litter in your cat's litter box with a safer alternative. There are a variety of cat litter alternatives available that are safe for rats, such as paper pellets, wood shavings, or corn cob litter.
5. Keep an eye on your rat to make sure it doesn't start eating the new kitty litter. If it does, you may need to take additional steps to prevent it, such as covering the litter box or placing it in a location where your rat can't reach it.
By taking these steps, you can help to keep your rat safe and healthy.