Is atomoxetine the same as Ritalin?

I'm curious, are atomoxetine and Ritalin essentially the same thing? I've heard they're both used to treat ADHD, but I'm not entirely sure if they work in the same way or if there are any notable differences between the two medications. Could you explain the similarities and differences between atomoxetine and Ritalin, and how they compare in terms of effectiveness and potential side effects? I'd appreciate your insight as a professional in the field.