Question

Question 8 1 pts Which of the following describes the mechanism of action of methylphenidate (Ritalin)? It inhibits CNS and respiratory stimulation to produce a calming effect. Increase the amounts of norepinephrine and dopamine available to produce a mood elevation Selectively inhibits the presynaptic transporter of norepinephrine so the reuptake does not occur Decreases the amounts of norepinephrine and dopamine to produce a calming effect.

Answer 1

Ans) 8) Decrease the amounts of norepinephrine and dopamine to produce a calming effect.

Explaination:

Methylphenidate (Ritalin) is believed to work by improving the action of catecholamines in the brain.

- It achieves this by blocking dopamine and norepinephrine reuptake by neurons.

-  Methylphenidate is a central nervous system (CNS) stimulant of the phenethylamine and piperidine classes.

- Methylphenidate is a CNS stimulant approved for the treatment of narcolepsy and attention deficit hyperactivity disorder (ADHD).

- Methylphenidate inhibits the reuptake of dopamine and norepinephrine, increased dopaminergic and noradrenergic activity in the prefrontal cortex may explain its efficacy in ADHD.

- it was assumed that stimulants had paradoxical calming effectsin ADHD patients, whereas stimulating 'normal' individuals and producing locomotor activation in rats.

- Often, stimulants like Ritalin, Vyvanse, or Adderall help people stay calm, that means that they must have ADHD.