CaliciX™ is a feline-specific antiviral treatment developed to support cats affected by feline calicivirus (FCV) — a common viral infection responsible for painful oral disease in cats.
 
Often referred to as calicivirus, feline calici, or virus calici, this infection is a leading cause of stomatitis, gingivitis, mouth ulcers, and chronic oral inflammation in cats. CaliciX™ is designed to target the virus directly, rather than only managing symptoms.
 
What Is Feline Calicivirus in Cats?
Feline calicivirus in cats is a highly contagious viral disease. Cats with FCV may develop persistent inflammation in the mouth, making eating and grooming painful.
 
Common search terms such as fcv cat, fcv in cats, and calici in cats all refer to this same condition.
 
Common Calicivirus Cat Symptoms
Cats suffering from calicivirus may show:
Severe gum inflammation
Painful mouth ulcers on the tongue, gums, or cheeks
Excessive drooling
Bad breath
Difficulty eating or swallowing
Reduced appetite and weight loss
 
These calicivirus symptoms can worsen over time, especially in chronic or recurrent cases.
 
How CaliciX™ Helps Cats With Calicivirus
Each CaliciX™ capsule contains 15 mg of EIDD-1931, the active antiviral form of molnupiravir, formulated specifically for cats.
 
Unlike supportive care alone, CaliciX™ works by:
Targeting feline calicivirus replication
Reducing viral activity at the source
Supporting healing of oral tissues
 
This makes CaliciX™ a targeted option for calicivirus cats treatment, particularly when oral disease is persistent or recurrent.
 
Conditions Supported by CaliciX™
CaliciX™ may be used under veterinary guidance to support cats diagnosed with:
Feline Chronic Gingivostomatitis (FCGS)
Juvenile gingivitis
Caudal stomatitis
Viral mouth ulcers
Glossitis associated with calicivirus
 
Many cat parents report improvements in comfort, appetite, and overall quality of life when CaliciX™ is included in a veterinarian-guided treatment plan.
 
Why Choose CaliciX™ for FCV in Cats?
✔ Designed specifically for feline calicivirus
✔ Contains EIDD-1931, not human molnupiravir
✔ Targets the viral cause, not just symptoms
✔ Supports long-term management of calici symptoms
 
If your cat suffers from calicivirus cat symptoms or recurring oral pain related to feline calicivirus, CaliciX™ offers a modern antiviral approach built specifically for feline needs.

Dosage Adjustment Guidance
Dosage may be adjusted by a licensed veterinarian based on the cat’s clinical response.

Signs that may indicate insufficient dosage include:
Persistent drooling
Pain or discomfort while chewing
Slow healing of oral ulcers
Unintended weight loss
 
Any dosage increase should remain within the recommended range and must be performed only under veterinary direction.
 
Veterinary Use Notice
Use under veterinary supervision. Dosage and treatment duration may vary based on the severity of FCV in cats and clinical response.