Matt,
As always I will speak with my own experience. If my memory is correct, I was on temodar 460mg 5/23 for 2 years. The side effects for me were for the most case mild. One of the things it caused was the taste of food to change. Some foods more then others. The one thing I knew was I needed to get food down in order for my body to deal with the big C. It resulted in me blending some "smoothies" to insure I was getting some of the things my body needed. This was a once day thing for me. As your son has mentioned it would take about 3 weeks for everythign to get back to "normal" then all over again. I HOPE this helps some....
HOPE
Damon
Dx NOv 07......No regrets