Did you experience nausea on them? Was it methylphenidate? Which formulation and dose? I had 1yr ritalin, 1yr adderall, and 6 yrs concerta 18mg. At this point the sight of "alza 18" on a small tan cylinder makes me want to puke.
It didn't give me nausea but it did give me dry mouth and made me not really want to eat. However, when I got home I was ravenous and would always eat two dinners.