I get depressed and tired at my office and I can't concentrate well or get the job done. A friend gave me Ritalin and said that it could help, and that she used to take it when she had the same problem.
I tried it and it really helps me- I feel alert and awake, more concentrated and content. I once was diagnosed with ADD and it was recommended that I take it, however my parents were not pleased with the idea, so eventually I didn’t take it.
Any side effect it might have on me?

What does one do in order to get a prescription? Should I go to a shrink or to my family doctor?