💊 Isotretinoin Dose Calculator
Plan cumulative dose targets and track ongoing treatment progress.
What it calculates
Cumulative isotretinoin dose (mg/kg) needed to achieve remission, distributed across custom treatment phases.
Standard target
120–150 mg/kg total cumulative dose. Higher targets are associated with lower relapse rates in severe or recurrent acne.
Interpretation
<120 mg/kg → higher relapse risk. 120–150 mg/kg → standard. >150 mg/kg → consider in severe/relapsing cases only.
Limitations
Does not account for dose interruptions, weight changes during treatment, or individual pharmacokinetic variability.
Patient Parameters
Weight is required.
Standard: 120–150 mg/kg
Updates automatically
Enter weight first — mg/kg and total mg stay in sync automatically.
Initial Phase — optional
Maintenance Phase
Enter either the daily dose or the planned duration — the other will be calculated automatically.
or
Patient Parameters
Weight is required.
Treatment History
Add each completed phase with its duration and daily dose.
Clinical disclaimer: This tool is intended for educational and clinical decision support purposes only.
Always exercise independent clinical judgment. Doses must be individualized based on patient factors, tolerability,
disease severity, and current evidence-based guidelines.