What is the Maximum duration to stop Accutane before proceeding the course?

The course of accutane is usually 4-6 months in dose ranges
from 20-60 mg/day. The goal is to reach a 120-150 mg/kg dosage over the single
4-6 month course. This gives you a 90-95% success rate of clearing acne for
lifetime. There is a 5-10% recurrence rate of  acne on accutane and courses can be repeated 2-3 times if
needed after a 4-6 weeks break on the medication.

Overall, in the right hands, it is a great medication and if
used properly, it will clear acne for life in 90-95% of cases. For the best
results, please consult a board certified dermatologist with experience with
severe acne.