Accutane Calculator
Isotretinoin Treatment Tracker
Cumulative Dosage Calculator
Track your total isotretinoin dose, monitor progress toward your mg/kg target, and estimate how long your treatment will take.
AAD guideline: 120–150 mg/kg · Research-backed optimal: 150–220 mg/kg
Leave as 0 to plan from the start
Enter your details and press Calculate to see your treatment overview.
| Month | Daily Dose | Monthly Total | Cumulative | mg/kg |
|---|
What is a Cumulative Dose?
The cumulative dose is the total amount of isotretinoin taken over your entire treatment, measured in mg per kg of body weight (mg/kg). Unlike antibiotics where daily dosing drives results, isotretinoin's long-term success depends on reaching this total.
Target Ranges Explained
- Under 120 mg/kg: Higher relapse risk (30–40%)
- 120–150 mg/kg: AAD guideline standard (~20% relapse)
- 150–220 mg/kg: Optimal range per recent 2025 research (lower relapse)
- Above 220 mg/kg: Diminishing returns, not typically recommended
Standard Dosing Guidelines
- Standard dose: 0.5–1.0 mg/kg/day
- Low-dose protocol: 0.1–0.4 mg/kg/day (longer course, fewer side effects)
- Typical duration: 4–8 months
- Most dermatologists start at 0.5 mg/kg/day and titrate up
Medical Disclaimer: This calculator is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Isotretinoin (Accutane) is a prescription medication requiring enrollment in iPLEDGE (US) and regular medical monitoring. Always consult your dermatologist before making any dosing decisions. Relapse rates and treatment targets vary by individual.