What prolonged vomiting means for your cat
Twelve hours of continuous vomiting after pothos exposure signals that your cat's system isn't resolving the irritation on its own. Unlike short-lived vomiting that removes the plant material, persistent episodes now reflect inflammation and possible gastritis. At this stage, your cat has likely lost significant electrolytes and fluids, putting them at risk of metabolic imbalance.
The calcium oxalate crystals initially caused mouth pain, but ongoing vomiting suggests they've triggered a cycle of stomach lining irritation. You might notice the vomit changing from plant fragments to bile or foam—this indicates an empty stomach continuing to contract painfully. Dehydration exacerbates nausea, creating a dangerous feedback loop.
Immediate risks after half a day of vomiting
Beyond dehydration, prolonged vomiting prevents your cat from keeping down any water or nutrients. Their blood sugar may drop dangerously low, especially in smaller or younger cats. Watch for weakness, trembling, or disorientation—these are red flags requiring emergency care. Cold extremities or rapid shallow breathing also indicate advancing dehydration.
The digestive tract becomes increasingly sensitive after hours of vomiting. Even small sips of water might trigger more retching now. Don't attempt home remedies like broth or anti-nausea medications; your cat needs professional fluid replacement and possibly antiemetics administered via injection to break this cycle safely.
Why emergency care can't wait
While some cats recover from pothos exposure with minimal intervention, twelve hours of vomiting exceeds the window for watchful waiting. At the clinic, they'll administer IV fluids to correct dehydration and protect kidney function—organs that suffer when blood volume drops. Blood work may check electrolyte levels that home care can't address.
Veterinarians also assess for less common complications like esophageal irritation from repeated vomiting. Your cat might need medication to coat their stomach lining or control acid production. These interventions require professional oversight to avoid masking symptoms of a worsening condition.
What to expect at the veterinary visit
Upon arrival, the team will prioritize stabilizing your cat's hydration before addressing the pothos toxicity itself. They'll likely place an IV catheter for fluid therapy and possibly administer anti-nausea medication. Be prepared to describe the vomiting timeline—frequency, volume, and appearance—as this helps tailor treatment.
The vet may perform imaging if they suspect plant material remains in the stomach or intestines. While pothos isn't typically life-threatening, complications from prolonged vomiting can be. Hospitalization for 12-24 hours lets them monitor recovery closely, especially if blood work shows abnormalities. Ask about follow-up care for reintroducing food gradually once vomiting stops.
The step-by-step response, from the first minute to the vet visit, is in our Pothos, Philodendron & Monstera emergency guide.