Launched on 6th of October 2026

Atrial fibrillation

DOAC choice & dose — CKD and liver disease

Checks DOAC contraindications (mechanical valve, moderate–severe mitral stenosis, antiphospholipid syndrome, pregnancy), calculates Cockcroft-Gault creatinine clearance and Child-Pugh class, and gives the licensed AF dose or the reason to avoid each DOAC, with guidance for dialysis, GI bleeding risk and older patients.

Upload a report, lab sheet or echo picture to fill this calculator automatically.
DOAC contraindications
Any of these: use a VKA
Patient and renal function
Cockcroft-Gault with actual body weight, as in the DOAC trials
Chronic kidney disease
Liver disease
Child-Pugh class
Other factors
DOAC choice and dose · AF
Enter renal function (or dialysis status).