Feline infectious peritonitis (FIP) is a lethal disease caused by coronavirus. Currently, no treatment or vaccinations exist that can control this disease in cats. Polyprenyl Immunostimulant showed promise in treatment of cats with dry form FIP-it extended life of the cats diagnosed with the disease by at least two years*.

Legendre A.M & Bartges, J.A. (2009) Effect of polyprenyl immunostimulant on the survival times of three cats with the dry form of feline infectious peritonitis J Feline Med Surg, 11(8):624-626