A 72-year-old woman with Parkinson's disease is taking a medication that increases release of dopamine, blockade of cholinergic receptors, and inhibiting the N-methyl-D-aspartate receptor. This describes which of the following agents?

A 72-year-old woman with Parkinson's disease is taking a medication that increases release of dopamine, blockade of cholinergic receptors, and inhibiting the N-methyl-D-aspartate receptor. This describes which of the following agents?

A 45-year-old man with attention-deficit/hyperactivity disorder presents to his primary care physician for evaluation and treatment. Physical examination of the heart, lungs, and abdomen are within normal limits. The patient has begun on atomoxetine. Which of the following underlying disorders must the treating physician be aware of?

A 47-year-old man with seizure disorder presents to his primary care physician for follow-up. Because of a recent exacerbation in his seizures, he is prescribed with lacosamide. Which of the following is the most likely mechanism of action of this medication?

A 35-year-old man who is an immigrant has been taking prazepam for anxiety for 10 years. This drug is not available in the United States, so he goes to see a physician about a drug that would be a good replacement. What might happen to this patient if he was unable to replace his prazepam and abruptly quit taking it?

A 64-year-old man presents with a shuffling gait, cogwheel rigidity, and a resting tremor. His physician prescribes levodopa and his symptoms greatly improve, supporting a diagnosis of Parkinson's disease. How does levodopa help this patient's symptoms?