Interferon reduces symptoms by suppressing the immune response to FIPV but does NOT eliminate the virus. Cannot achieve remission. Only antiviral nucleoside analogues like GS-441524 cure FIP.

End of dosing begins a 12-week observation period with no medication. No FIP signs after 12 weeks = sustained remission. Confirm with bloodwork at treatment end and at end of observation period.

Depends on cat weight, FIP type, and injectable vs oral. Full 84-day course = 3 packs capsules (or equivalent vials adjusted for weight). Order all 3 at start. Contact team if cost is a concern.