Symptoms include hypersalivation, vomiting, twitches and tremors, seizures, and coma. (consciouscat.net)
The cat may show signs of hypersalivation (drooling), halitosis, pawing at the mouth, difficulty eating and sometimes bleeding from the mouth. (icatcare.org)
Moreover, we observed changes in behavior with less irritability and apathy, as well as less hypersalivation in some cases. (content.iospress.com)