Two of my daughters & I are on Concerta RX & as the meds wear off in the evening, I do notice that they are super hungry--sometimes they will make another meal, after eating a healthy dinner. I keep healthy snacks around & also stuff they can fix themselves, fruit, yoghurt, frozen burgers, mac & cheese, popcorn, etc. When they were younger, they now are 13 & 17, they would get VERY quarrelsome & start having melt-downs. And now...PMS, our friend, can cause some melt-downs, but some months they sail right through it. They are maturing & have a better handle on their emotions. Most nights they start to amp up & want to "party" --dancing, listening to loud music, running around doing gymnastics, all things my hubby & I are out of patience with by the end of the day. I generally let them "be wild" until 9ish, then herd them to bed. We have a no screens after 8 pm on school nights rule & that has helped a lot. Also on school nights if they are feeling "not tired" enough, they will take a Melatonin about 30 minutes before bed time.
I tried the Adderral RX & it caused MASSIVE headaches & I was really grumpy & angry. I didn't know other people had similar reactions, but I just switched back to Concerta after a month of that. Unfortunately, although one of their previous psychiatrists thought that Vyvanse & Intuniv would be better for them, our HMO doesn't not cover it.
Good Luck. It has been hard to figure out what's the best meds & dose for each girl & whether to use a sleep aid or not. My oldest was put on Trazadone to help her sleep & the longer she took it, the more frequent & intense her melt downs. It took me TOO long to put it together, but it was causing her MORE anxiety & her melt-downs started to be worse than anything she ever had as a toddler. I also use to resist letting them eat a full meal so late because they had just eaten 2 or 3 hours earlier. But I think it helps. The pay off in their behavior, focus & ability to handle life has been worth it. And THEY see it. I'm not forcing it on them. My youngest started at a new school this year & the teachers were so surprised to find out she had ADHD. Believe me, in 3rd grade, EVERYONE knew!