I take Modalert for narcolepsy. Thanks to Modafinil I don't feel tired at all and feel totally energetic during the day. I have had no side effects other than a slight headache.
I've been taking modafinil for narcolepsy for 3 years as it works well for me. After taking it, I'm not tired at all and feel powerful. Sometimes I have diarrhea, which really bothers me. That's not good about Modafinil, but other than that it's a very good and effective drug!