In review of the benzodiazepine class, which of the following agents has the longest duration of action and may be useful in the treatment of a 39-year-old patient with spinal cord injury and with skeletal muscle spasticity?

In review of the benzodiazepine class, which of the following agents has the longest duration of action and may be useful in the treatment of a 39-year-old patient with spinal cord injury and with skeletal muscle spasticity?

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?

A 67-year-old man with hypertension is treated with guanethidine. He has been taking this medication for years. His blood pressure is 130/86 mm Hg. Which of the following adverse effects must this patient be aware of?