My two children, age 16 and 18 are having problems with acne. We have done topicals, oral medication, and my daughter, age 18, has even done birth control pills. The only thing we have found to be effective is accutane. I would like to put them back on the medication. We were in Malaysia and the dermatologist there prescribed 20 grams(?) daily. What should the appropriate dosage be? They both weigh approximately 120 lbs. Also, when they come off of the medication they start breaking out again within a couple of months. I thought Accutane was supposed to be a long-term fix for acne. Now that we are back in the U.S., will the dermatologists here agree to put them on Accutane?