Methylphenidate
"This is the first and only medication we've given to my 6yo son since being diagnosed with adhd in January 2016. It works very well. We give him his dose at 6:30am during the school year and the teacher notices it wearing off by about 2pm. The only noticeable side affects were a slight decrease in appetite the first few weeks, and slightly more difficulty when settling down for bed at night.  We no longer have either issue.  It is pricy. We pay $$65/month with our insurance plan. We live in PA and have to pick up the prescription from the doctor's office each month. We've also had an issue occasionally when our pharmacy does not have quillivant in stock. When this happened we had to drive to several pharmacies to find one who had it."