What are the differences between amphetamine salts and methylphenidate in terms of their effects and mechanisms of action?

Amphetamine salts and methylphenidate are both stimulant medications used to treat conditions like ADHD. However, they have different chemical structures and mechanisms of action in the brain. Amphetamine salts work by increasing the levels of dopamine and norepinephrine in the brain, while methylphenidate primarily increases dopamine levels. This difference in mechanism can result in varying effects on individuals, such as differences in side effects and duration of action.