Eight-month-old kitten in end stage "dry"<unk> , who had signs of anemia, lethargy, and weight loss. She exhibited eye changes (widening and paralysis of pupils) during seizures. Because<unk>  is an immune-mediated disease, treatment falls into two categories: direct action against the virus itself and modulation of the immune response. Antiviral drugs Immunostimulants Immunostimulants are drugs that make the immune system more active against the virus. The most common drugs of this class for treating<unk>  are either recombinant<unk>  interferon omega (Virbagen Omega, Virbac) or human interferon alfa-2b. Since the human version ends up being targeted by the immune system for being a foreign antigen, the<unk>  version<unk>  interferon is more effective. An experimental polyprenyl immunostimulant (PI) is manufactured by Sass and Sass and tested by Dr. Al Legendre, who described survival over 1 year in three cats diagnosed with<unk>  and treated with the medicine. In a subsequent field study of 60 cats with non-effusive<unk>  treated with PI, 52 cats (87%) died before 200 days, but eight cats survived over 200 days from the start of PI treatment for and four of those survived beyond 300 days. Antivirals Antivirals (in the narrow sense) act by interfering with the enzymes or other biological processes in the<unk>  virus. An experimental drug called GS-441524 was used in a field experiment of 31 cats. After 25 days, five cats had died, eight had been cured and subsequently relapsed, and 18 had been cured without any subsequent relapses. The eight who relapsed were treated again, some with higher doses. Of these eight, one died and seven were cured, meaning that 25 of the 31 cats were ultimately cured of<unk> . Although the drug is not yet (as of 2019) commercially available in the United States, this study is considered very promising and may lead to commercially available medication for the treatment of<unk> . GS-441524 is available at >99% purity commercially from research chemical suppliers such as Selleckchem, MedKoo and MedChemExpress. An experimental antiviral drug called GC376 was used in a field trial of 20 cats: 7 cats went into remission, and 13 cats responded initially but relapsed and were euthanized. This drug is not yet (as of 2017) commercially available. Anti-inflammatory drugs It is generally recommended to use an anti-inflammatory drug against<unk> . Immunosuppressive drugs dampen the immune system, helping to reduce inflammation. The go-to immunosuppressive drug in<unk>  is prednisolone, a corticosteroid. There are no placebo-controlled trials showing prednisolone to be better than other anti-inflammatories.
Feline infectious peritonitis
Travelers' diarrhea
Miliary fever
DAVID syndrome
Hantavirus hemorrhagic fever with renal syndrome
Hemolytic–uremic syndrome
Spontaneous bacterial peritonitis
Salmonellosis