"Treating symptoms of ADHD is very much a collaborative effort between you and your doctor. Which symptoms are most troublesome? When are you or your child most affected by symptoms? Is it mainly during school or work hours, meetings, exam times, leisure times, driving periods, or morning routines? These are some of the questions your doctor will ask.
Based on an understanding of the full impact of ADHD on daily living, your doctor will discuss a treatment program that includes behaviour therapy and coaching, along with medication with a delivery system that matches your particular needs. 
Some options are once-a-day medications that have a special type of delivery technology that allows the active medication to be released into the body in a controlled way throughout the day.
The long-acting formulations of methylphenidate include Biphentin, Concerta, and Foquest. Long-acting versions of amphetamines include Adderall XR and Vyvanse. Long-acting options for guanfacine and atomoxetine include Intuniv XR and Strattera, respectively. The short- and intermediate-acting formulations of methylphenidate include Ritalin and Ritalin SR, and the short- and intermediate-acting amphetamine medications include Dexedrine and Dexedrine Spansule. 
Finding the right medication with the right delivery system that provides the right symptom coverage for you or your child is just the first step; the next is to determine the appropriate dose—in other words, a stable dose that can be maintained over the long term. This dose adjustment process usually takes some time and requires patience as well as close collaboration with your physician. Why? Think of it as a delicate balancing act—the goal is to make sure that ADHD symptoms are well controlled enough to allow you or your child to be their best self, while at the same time keeping any troublesome side effects to a minimum. When starting a medication, your doctor will initially prescribe a low dose, and over time work their way up to a dose that provides the best, and most consistent, symptom control while making sure no major issues arise relating to medication side effects. This process could take a few weeks, since doses need to be spaced out and increased gradually, to allow the body time to adjust to the medication."