Is there any medication for add that does not affect a child's height and weight growth?

Long-term effects. Of stimulants on growth have been studied. With methylphenidate products, a 1/2" & 1/2 lb. & with amphetamines, 1" & 1lb difference from projected ht. & wt. Were seen. Suppressed appetite may occur early on, with the lowest point ~ 3rd mo. Of treatment. I follow bmi instead of ht & wt. The heaviest kids lose the most weight. 5th-85th%ile is normal, 25th-75th%ile is average., 85th-95th% overweight.
Strattera (atomoxetine) But not usually as effective can diminish side effects with drug vacations on weekends & summers off of the stimulants.
Possibly. Non stimulants such as effexor, (venlafaxine) wellbutrin, nortriptyline, strattera and guanefacine may not have as much impact on weight as the stimulants but they can effect appetite and could effect growth but likely not as much.