Nephrology

Creatinine clearance (Cockcroft-Gault)

Estimate creatinine clearance for drug dosing, where many product labels are still validated.

Version 1976

Inputs

Use ideal or adjusted body weight in obesity.

CrCl (mL/min)

78

Use for dose adjustment where the product label specifies creatinine clearance (e.g. DOACs, enoxaparin, metformin).

  • Cockcroft-Gault overestimates in oedema and underestimates in low muscle mass.

Formula

CrCl = ((140 − age) × weight(kg) × (0.85 if female)) / (72 × Scr mg/dL)

Nephron · 1976

Demo content. Educational decision support only. Verify every dose, citation and recommendation against your national formulary and the primary source before clinical use.