Cumulative Isotretinoin Dose Calculator
Track Accutane treatment progress. Calculates total cumulative dose (mg/kg), percentage complete, and estimated end date based on clinical targets.
About
Achieving a specific cumulative dose is the primary predictor of long-term remission in acne treatment with Isotretinoin. Stopping treatment simply because skin clears is a common error. This often leads to relapse. Clinical guidelines typically recommend a target range of 120 to 150 mg/kg body weight.
This dashboard helps patients and clinicians visualize the trajectory of the therapy. It tracks the milligrams ingested to date against the patient's weight. It then projects the completion date based on the current daily maintenance dose.
Formulas
The Cumulative Dose Dcum is the ratio of total drug ingested Mtotal to patient weight W.
The Remaining Dose Mrem is the target T minus Mtotal. The Days Remaining t is found by dividing by the daily dose d.
Reference Data
| Patient Weight (kg) | Target Lower (120mg/kg) | Target Upper (150mg/kg) | Avg Duration (at 40mg/day) |
|---|---|---|---|
| 50 | 6,000 mg | 7,500 mg | ~5-6 Months |
| 60 | 7,200 mg | 9,000 mg | ~6-7 Months |
| 70 | 8,400 mg | 10,500 mg | ~7-8 Months |
| 80 | 9,600 mg | 12,000 mg | ~8-10 Months |
| 90 | 10,800 mg | 13,500 mg | ~9-11 Months |