It's because of the way that the human brain is wired. when a normal person takes a stimulant, their brain releases chemicals that boost the mental activity. When a person with ADD/ADHD takes a stimulant, their brains respond to the chemicals by slowing down. A simple metaphor would be that the wires in the brain are backwards for ADD/ADHD persons.
a drug prescribed for adhd
No; phentermine is used in the short-term treatment of obesity or to help aid weight loss. It shares similarity to amphetamine and is classified as a stimulant, however has not been approved to treat ADHD.
Though they are not as effective as stimulants, they are useful when stimulants don't work
This depends if you have ADHD or not. If you do have ADHD, it will calm you down, and it will be prescribed to you. If you do not have ADHD it will make you hyper, jittery, nervous, and sometimes a bit scary. It will NOT be prescribed if you don't have ADHD. In any case, you will stop eating or sleeping, and easily become addicted to it.
it means someone has mantle problem
No; Suboxone is a brand name for the drug buprenorphine which is an opioid. Most ADHD medication belong to a group of drugs known as stimulants and could cause false positives for methamphetamine and other stimulants.
No, they can't.
yes
Stimulants
yea
There are numerous drugs available to treat adult ADHD. Ritalin is methylphenidate, a stimulant used to treat ADHD. There are other stimulants available: Adderall and Vyvanse. Non-stimulant options exist such as Straterra. Please see the related question below.
Yes; the vast majority of them are stimulants and thus schedule 2.