Autonomic Pharmacology USMLE Step 1 Practice Question
A 71-year-old man presents with urinary hesitancy, weak stream, and nocturia. Vital signs: BP 138/82 mmHg, HR 78/min, RR 16/min. Digital rectal examination reveals an enlarged, smooth prostate. PSA is 6.2 ng/mL. He denies erectile dysfunction. Urinalysis shows no infection. He is started on a medication that selectively relaxes smooth muscle in the bladder neck and prostate with minimal cardiovascular effects. Which drug was most likely prescribed?
Answer choices
- AOxybutynin
- BFinasteride
- CBethanechol
- DTamsulosinCorrect answer
- EPhenylephrine
- FDoxazosin
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