Concerta is a brain stimulant. Periactin a sedative. They should not be given together. Weight loss with Concerta is almost never a problem as it tends to settle eventually. Breakfast before Concerta and the evening meal after Concerta fades will ensure no malnutrition.

My son was on Periactin in the evening and it did help him somewhat. I just didn’t like that it seemed to make him hungry at a certain time of the day. He would want to eat everything in sight at about 7:00 in the evening.  My son is also on Concerta (72 mg) We took him of periactin because we changed one of his other meds. He is now taking Zyprexa in the evening and now I am trying to slow down his eating. He has gained 25 pounda over the last year. It is hard. You have try different things. Not everything works the same for evreyone.
Good luck to you.

Weight loss on some treatments for ADHD is seen but is never a problem. However putting on weight is always a problem and it is due to one of the frequent complications of the condition itself. Addiction in the true sense is seen in ADHD and it can be to “street drugs ” or to food. It needs serious attempts to prevent or to treat. It is also more prevelent in famalies with obesity.

I greatly disagree that weight loss is “never a problem”. ( I do agree that excessive weight gain is a problem, too.) Weight loss is a very major problem for children on ADHD medications.  Several pediatricians in our office have voiced their concerns over children’s progressive weight loss as it stunts growth hormone production not only while taking medication but also in the long run. So much so that they are taking children off stimulants at a certain weight loss point.  Many of the children are now classified as clinically malnourished due to lack of appetite or parents needing to turn to letting children eat whatever they feel like just to get calories in them rather than nutrition.  Both weight loss and weight gain are problematic.