Bitter medications
Cats can salivate dramatically after tasting certain oral medications. If the correct medication and dose were given and the cat otherwise appears normal, the episode may resolve quickly. Contact your veterinarian if you are unsure whether the medicine is safe or whether the full dose was swallowed.
Oral and dental pain
Stomatitis, dental disease, oral ulcers, foreign material under the tongue, and mouth injury can cause drooling. Pawing at the mouth, difficulty eating, bad breath, or blood increase concern.
Nausea and systemic illness
Nausea can cause hypersalivation before vomiting. Kidney disease, gastrointestinal disease, and other illnesses may contribute. A complete history helps separate taste-related salivation from true disease.
Toxin safety
Do not induce vomiting or give milk, oil, or other home remedies unless directed by a veterinarian or animal poison-control professional. Bring the product label or a photo of the suspected exposure when seeking care.