Methylphenidate
"I got prescribed ritalin ir 5 mg for depression caused by fatigue (worsened by chemo). At first, I thought taking a pill whenever I was depressed or fatigued would be awesome, but it sucks. All it turns into is a schedule, and taking a pill 3 times a day on an empty stomach becomes difficult. When it worked, it worked well, but the crash was terrible. Even when it was working, I couldn't even enjoy watching tv. It was horrible.
Then, I was prescribed 20 mg of the slow release, which was much better. It lasts pretty much all day, there's no crash, and it gives me a little more energy to do things. It does decrease my appetite, but it's worth it. It does make it a little difficult to go to sleep on time, but it makes waking up early very easy"