Yes, I'm surprised people are shocked at this. We tell people all the time to use tren over "milder" drugs b/c it's a stronger drug in the same class, and will do a better job. Ritalin is an amphetamine-like stimulant, much like phentermine but stronger. People use phentermine to diet all the time. Personally, I'm immune to clen and find it useless even at 240mcg/day. When I could get ritalin, an effective dose cost LESS than clen, b/c of the disparity of the effective doses of the respective drugs. I found ritalin/ECY 2 week rotations to be great for fat loss, or phentermine/ECY if I couldn't get ritalin. You do need to watch out for tolerance and/or abuse, as ritalin is an addictive shedule II stimulant, but we're looking for results here, and ritalin will give you results... and hell, it's still a lot safer than DNP.