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"I find modafinil it more effective than caffeine although the initial effects seemed to wear off after about 8 hours or so. There are definitely less side effects than with other prescription stimulants such as phentermine or ritalin.Being in a creative field, I%u2019d personally recommend Modalert 200 to people who have troubles brainstorming and have to work on complex projects. I%u2019ve been regularly ordering mine online. And my experience  has been pretty good."