Norepinephrine affects blood vessels, blood pressure and heart rate, blood sugar, and breathing. Dopamine is involved in the reinforcement of rewarding behaviors. Prescription stimulants increase the activity of the brain chemicals dopamine and norepinephrine. How do prescription stimulants affect the brain and body? Alternatively, they can crush tablets or open the capsules, dissolve the powder in water, and inject the liquid into a vein. When misusing a prescription stimulant, people can swallow the medicine in its normal form. taking medicine only for the effect it causes-to get high.taking medicine in a way or dose other than prescribed.Misuse of a prescription stimulant means: Most prescription stimulants come in tablet, capsule, or liquid form, which a person takes by mouth. How do people use and misuse prescription stimulants? Taking prescription stimulants for reasons other than treating ADHD or narcolepsy could lead to harmful health effects, such as addiction, heart problems, or psychosis. Teens and college students sometimes misuse them to try to get better grades, and older adults misuse them to try to improve their memory. Some people take prescription stimulants to try to improve mental performance. Do Prescription Stimulants Make You Smarter?

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