https://www.iampsychiatry.com/....adult-adhd-medicatio
How Does ADHD Medication Work? Stimulants are a first treatment option for ADHD. They help regulate the levels of two brain chemical substances (neurotransmitters) that convey messages between neurons to improve attention and reduce hyperactivity. However, up to 20 percent of people don't respond to the most frequently prescribed stimulants, methylphenidate and amphetamine. This may be due to the body's chemistry or other drugs they are taking. What are the signs of ADHD? Talk to your child's doctor if you suspect that they may have A