Conventional dose pathStandard-dose isotretinoin
Uses a higher daily exposure within an individualized course, usually for acne that warrants more intensive systemic treatment.
- Often discussed forModerate-to-severe, nodular, cystic, scarring or treatment-resistant acne
- Daily intensityFDA labeling describes 0.5–1 mg/kg/day for severe recalcitrant nodular acne
- Honeydew timelineCommonly described as 6–12 months, with initial change often beginning in 4–8 weeks
- Main tradeoffLess time on treatment, with dryness and other dose-related effects often more noticeable



