How many months should someone take accutane?

Accutane: 50% of people are cured of acne with one course of 20 weeks at a dose of 1 mg/kg and most of the rest of the people are cured with a second course of 20 weeks at a dose of 2mg/kg. Weekly blood test monitoring is important, particularly at the higher doses. By weekly blood tests you can discover any adverse effect of the medication before any harm can occur to you.