Wet Form FIP (Abdominal Effusion):

Symptoms: Increased fluid in the abdomen area (causes a pot-bellied appearance).

Dosage: (5 mg/kg)


Wet Form FIP (Thoracic Effusion):

Symptoms: Fluids in chest (hard for the cat to breathe).

Dosage: (6 mg/kg)

Dry Form FIP (non-effusive):

Symptoms: Excessive thirst and urination, vomiting, weight loss, jaundice and/or organ inflammation.

Dosage: (6 mg/kg)


FIP Ocular symptoms:

Symptoms: Swelling in the eyes or any damage or abnormal change in the eye tissue.

Dosage: (8 mg/kg)


FIP Neurologic symptoms:

Symptoms: Nervous tissue damage: Seizures or blindness, movement in an abnormal or uncoordinated way.

Dosage: (10 mg/kg)


  • If wet or dry FIP cats develop ocular or neurological symptoms, their dosage should be adjusted.

  • Adjust GS doses on a monthly basis to account for weight gain.

  • Weight gain in many cats can be enormous, either because they are depleted at the start or because their growth has been stunted. Failure to gain adequate weight during treatment is regarded as a negative sign.

  • If there are compelling reasons to increase the dosage, it should always be between +2 and +5 mg/kg daily for at least 4 weeks. If the 12-week treatment time is extended by 4 weeks, the treatment time is extended to accommodate. Any increase in dosage should produce a positive response, and failure to see improvement indicates that the dosage is still not high enough, drug resistance is occurring.