Lisdexamfetamine
"I started taking Vyvanse in the latter half of 6th grade due to disruptions and conflicts at school.  I took it almost everyday during the school year, until 11th grade.  I stopped during the summers.



I moved from 40mg, to 35, to 30, to 60, then to 50mg.

As i took the pill daily, i lost appetite constantly.  Though there was no concern of my weight, i did stay quite thin while i was on it. (i was not unhealthy.)  

However, after i ceased to intake vyvanse, i had a large burst of weight gain.

I went from 140 to 210 in about 4.5 months.  I bordered near "above average" on the body fat chart.  This gain in weight was, i believe, the direct result of stopping the pill."