Wet (Effusive) FIP
Fluid buildup in the abdomen or chest.
Practical • Evidence-Informed • Owner-Friendly
Feline Infectious Peritonitis (FIP) is a serious disease, but modern antiviral therapy has changed the outlook. This guide explains treatment principles, dosing basics, monitoring, and supportive care—step by step.
Educational content only. Always consult a licensed veterinarian for diagnosis and treatment decisions.
FIP develops when a common feline coronavirus mutates inside a cat’s body and triggers a damaging immune response. The mutated form is not considered directly contagious between cats, but coronavirus can spread in multi-cat environments.
Early signs can be subtle. Because FIP can progress quickly, prompt evaluation and treatment planning are essential.
FIP diagnosis often involves a combination of clinical signs and tests. Your veterinarian may recommend blood work, imaging, and other supportive diagnostics to guide treatment and monitoring.
Modern antiviral therapy targets viral replication. Success depends on correct dosing, consistent daily administration, and completing the full treatment course.
Doses are commonly expressed in mg/kg/day and depend on clinical presentation. Your veterinarian may adjust dosing based on response.
Many cats show improvement within days, but monitoring remains essential. Track clinical changes and follow your vet’s test schedule.
Alongside antiviral therapy, supportive care can help the body recover. Discuss supplements and nutrition with your veterinarian.
