METHODS: This prospective study was performed between 2011 and 2015. All 150 patients were given 10 mg daily isotretinoin until a cumulative dose of 90-110 mg/kg.
RESULTS: The mean age was 26.6 years with 64.7% moderate acne, 29.3% severe, and 6% very severe. The mean cumulative dose was 98.8 ± 6.05 mg/kg. All 150 patients had total clearance with a mean time to clearance of 24.0 weeks. Patients with severe/very severe acne had higher cumulative dosage (102.1 vs. 97.0, P