Hello, well I have facial acne for 2 years I tried all topical treatments available in the hospital but it recurre again & now I started to have scar ,, my doctor prescribed isoretonin tabs 30mg od for 3 months,, nowadays my husband asking me to stop contraception after treatment he wish to have a baby! Can you please tell me after how long period the isoretonin will be cleared from my body so after that I can stop contraception???