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FIP Dosing Calculator

Select the type of FIP, enter the cat's weight and the strength you're dispensing, and see the daily dose plus the total needed for the full course.

The type determines the dose guideline in mg/kg.

Dosage form

Switches the results between tablets and millilitres.

Fixed — Mixlab dispenses tablets at this strength.

Fixed — Mixlab compounds the oral suspension at this concentration.

Required — switch between kg and lb using the toggle.

The standard course is 84 days (12 weeks) — change it if your protocol differs.

Recommended dosing

Dose per day —
Total for the full course —

How this is calculated

Shown for transparency. These update as you change your inputs.

Dose guideline —
Target dose —
Unrounded dose —
Delivered dose —

Enter the cat's weight to see the recommended dosing.

Doses are rounded to the nearest 0.25. Always confirm the delivered mg/kg against current product labelling.

Email me these results

Optional — we'll send a copy of this dosing calculation to your inbox. Your results are already shown above.

For licensed veterinary professionals. This calculator is provided for informational purposes only and is not a substitute for professional clinical judgement. All doses must be verified against current product labelling before dispensing or administering. Mixlab accepts no liability for treatment decisions made using this tool.

Treatment for FIP is Available Through Mixlab

Mixlab_r1_ATX26233 (2) copy 2 1

50mg QUADmix tablets

  • 10mm in size
  • Designed to maximize palatability and increase compliance
  • Scored twice (easily split into quarters) for customizable dosing

Request Medication

Mixlab_r1_ATX26233 (2) 1

50mg/mL oral suspension

  • Great for cats who resist pills
  • Easy-to-use syringe allows for more precise dosing
  • Available in over 30 delicious pet-friendly flavors

Request Medication