Breast Cancer. Mastectomy. Chemo therapy. Herceptin for one year. Main complain is having the chemo brain. Hard to stay on a started task. Hard to start a task that needs to be done. Forgetful. Memory frustration. I I have 4 more of Herceptin to go. Oncologist said Concerta is ok to take while on treatment and will finish on 1/3/13. 54mg at 9:00am and Ativan 1mg at bedtime around 10:30-11:00pm. I was diagnosed ADHD about 8 years ago and did nothing about it. I am now 48. I was prescribed the concerta to hopefully help me get focused and organized and hopefully help with "chemo brain" issue. I have been on it 5 days today. Oncologist okay'ed the Ativan at night to help me sleep. Which i have been on since i had the surgery on 12/13/12. The first 3 nights, I cut the Ativan in half because I really am not into taking pills. So, 3 nights of wide awake and did not feel tired during the day. Bedtime tea did not help. Last night I took the Ativan 1mg and I slept all night! I will take it again tonight. I feel that Concerta is working, doing what it's supposed to do and I am able to do what I'm supposed to do for the day. I am not grumpy when I speak to my 15 years old daughter. Our relationship couldn't be better. I feel hungry all the time, but when I think of what to eat, I loose my appetite. Is this normal?. 5 days ago. I weight 150. Height 5'4. This morning my weight is 142. I am not in this to loose the weight. I liked seeing the weight down when I got on the scale this morning don't get me wrong. Who wouldn't? but when my weight is under 140 I get sick a lot. I have an appt with my cardiologist on Monday and hope for suggestions. My issue with taking this med is number one, it makes me hungry seems like all day and even at night. So I eat. It doesn't let me eat a lot, therefor I am loosing the weight. I do not want to loose the weight. It sounds like this is my diary and I am going in circle. I do not want to get addicted on this med. I need to get my focus back especially now that I am back to work. What happens when I am done with treatments and I stop taking concerta? I have so many questions going thru my head. Is this Concerta safe? Is this medication ok when one day you decide to stop not take it anymore. Are there withdrawals? I have been reading blogs from different sites and I am now confused. I am hoping there is one out there that has or had this chemo brain frustration. Oncologist said it will go away. But it takes time. I am not willing to wait for that time. I hope i am doing the right thing in taking Concerta. HELP:(