A 39-year-old man with recurrent epileptic seizures presents to his primary care physician for follow-up. He has no pertinent past medical, surgical, or family history in relation to his seizures. CT scan of the head reveals normal cerebral and cerebellar structures. There is no evidence of hydrocephalus. What is the most likely explanation of this patient's seizures?

A 39-year-old man with recurrent epileptic seizures presents to his primary care physician for follow-up. He has no pertinent past medical, surgical, or family history in relation to his seizures. CT scan of the head reveals normal cerebral and cerebellar structures. There is no evidence of hydrocephalus. What is the most likely explanation of this patient's seizures?

A 29-year-old woman who has been diagnosed with multiple sclerosis presents to her primary care physician with muscle rigidity and spasms. She also complains of difficulty sleeping, heartburn, and muscle pain. One of the drugs her physician prescribes is baclofen. Which of the following will baclofen do for this patient?

A 29-year-old man with spinal cord injury and with chronic gastric immotility syndrome has failed therapy with numerous cholinoimimetic agents. He has begun on therapy with physostigmine. Unfortunately, a supratherapeutic dose is administered to the patient. Which of the following effects must the treating physician be aware of?

A 68-year-old man with a 6-month history of progressive pill-rolling tremors of the hands, urinary incontinence, and cogwheel rigidity presents to his primary care physician for evaluation. Physical examination confirms the earlier findings. Which of the following is a therapeutic goal for this condition?

A 60-year-old man presents to his primary care physician for a new patient appointment. He is taking several drugs for his medical conditions. One of his medical conditions is hypertension, for which he takes a drug that acts on \(\alpha_2\)-receptors to lower blood pressure. Which of the following drugs is this?