A 57-year-old man with chronic gastroesophageal reflux disease on cimetidine presents to a new primary care physician. He states that he has been doing well and has been taking this medication for about 15 years. Which of the following statements is true about therapy with this agent?

A 57-year-old man with chronic gastroesophageal reflux disease on cimetidine presents to a new primary care physician. He states that he has been doing well and has been taking this medication for about 15 years. Which of the following statements is true about therapy with this agent?

A 22-year-old man is transferred to a tertiary care center for the management of trypanosomal infection. He has a significant history of travel abroad in Africa. When melarsoprol is used in the treatment of trypanosomal infections, which of the following serious side effects must the treating physician be concerned with?

The parents of an 8-year-old boy complain of his inability to concentrate and focus and his impulsiveness. Following multiple visits and tests, he is given a diagnosis and prescribed a mixture of amphetamine salts. The parents are initially pleased with the results but soon remark that they find him excessively preoccupied with tasks and 'zombie-like.' How can the physician best address this concern?

The use of atropine drops to the eye of a 37-year-old man who is a stockbroker would produce which of the following effects?

A 48-year-old male presents to the emergency department with chest pain for the past 2 days. The pain is nonradiating and burning in nature. An ECG is normal, and serial troponins are negative. The physician makes the diagnosis of GERD. What is the most potent therapy for the prevention of GERD?