Clinical decision support

Renal dose adjuster

Estimate drug dose adjustments for dogs and cats with renal impairment based on creatinine and IRIS stage. Review elimination route guidance and monitoring recommendations. Educational decision-support tool only.

This tool provides general guidance only. Always consult a formulary or pharmacology reference for species-specific recommendations.

Educational support only. Verify with clinical judgment and current references.
Safety checks
  • This tool supports calculation and education only.
  • It does not diagnose, prescribe, or replace clinical judgment.
  • Dose adjustments are estimates based on general principles.
  • Individual patient factors may require different adjustments.
  • Always consult current formulary and pharmacology references.
Basis and limits
  • Adjustment basis: creatinine and IRIS stage as surrogates for glomerular filtration rate.
  • Stage 1: minimal adjustment for most drugs.
  • Stage 2: mild reduction (typically 75% of standard) or extended interval.
  • Stage 3: moderate reduction (typically 50% of standard) with extended interval.
  • Stage 4: significant reduction (typically 25% of standard) or consider alternative drugs.
  • Scope: this tool provides general guidance. It does not replace pharmacology consultation.
Adjustment audit trail

Adjustment details will appear here for verification.

Last reviewed: May 2026

References: Plumb's Veterinary Drug Handbook, Merck Veterinary Manual, BSAVA Formulary, AAHA Guidelines. Verify against current references before clinical use.