I don't know whether you read the article but the handbook covers the subject of coping with accutane pretty well. Here is an excerpt that deals with GI Tubes:
Can Accutane be given through a G-tube? Some parents have administered Accutane through their child?sG-tube. The concern here is to makecertain the Accutane gets through the tube without sticking to the sides, andto use a carrier which does not prevent the Accutane?s absorption by the GItrack. Some parents have suggested that fatty meals or vegetable oil is a goodcarrier, and that mineral oil is not a good carrier. The fear was that since mineral oil is notbeing absorbed by the intestine and the Accutane is dissolved well in it, themineral oil may serve as a carrier that will take the Accutane out of the bodyand prevent the Accutane?s absorption by the GI track.
One parent"primed" the tube with half a ml of oil, then pushed the Accutane andfinally flushed with 5-10 ml of slightly warmed milk (suggested by the parent?shospital pharmacist, since it helps with absorption). Another parent mixed the Accutane with about5 cc's of flax seed oil.
There does notappear to be any ?official? advice on the best way to administer Accutanethrough a G-tube. The above is what someparents have done, and their children got the standard side effects, suggestingthe child was getting a sufficient dosage. However, you should discuss this with your oncologist.
This can be found in the handbook here:
If all else fails let me know and I can put you in touch with Dr. Patrick Reynolds. If anyone knows how to deal with this he does.