Veterinary Referral and Emergency Clinic (203-854-9960), 134 West Cedar Street, Norwalk, is open 24 hours.

If your pet has eaten something poisonous and you can’t reach your own veterinarian right away, you can call the ASPCA Poison Control Hotline at 888-426-4435. It is staffed 24 hours, but there is a $60 charge for services.