An 84-year-old man comes to the physician for a 2-day history of fever and urinary discomfort. He has no past medical history. Vitals are: temperature 101 F, HR 72, RR 12, BP 120/80. Prostatic examination elicits severe pain. Which of the following is the most appropriate initial pharmacologic therapy?
Amoxicillin
Cefotaxime
Cefoxitin
Ciprofloxacin
Dicloxacillin